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Best Support Gems for Lunar Assault

Damage supports ranked by their more/less multipliers · Path of Exile 2✓ Checked against game files · 0.5.5

256 support gems fit Lunar Assault in Path of Exile 2. 4 raise all of its damage or speed with a fixed multiplier; the biggest: Zerphi's Infamy (×1.5, cost ×1), Combo Finisher II (×1.4, cost ×1), Hit and Run (×1.4, cost ×1). 12 more only multiply one kind of damage (physical, hits, area, ailments…), and 43 only work under a condition. Patch 0.5.5, from the game files.

4 supports that multiply all of Lunar Assault's damage

  1. #1
    Zerphi's Infamy
    Supported Skills deal 50% more Damage
    also: Supported Skills requires 50 Glory to use · Supported Skills gain Glory equal to 5% of Life spent on other Skills · Supported Skills have 50% increased Area of Effect
    ×1.5
    all damage
    cost ×1
  2. #2
    Combo Finisher II
    Supported Skills deal 40% more Damage
    also: Supported Skills lose Combo if they generate no Combo for 4 seconds · Supported Skills require 5 Combo to use
    ×1.4
    all damage
    cost ×1
  3. #3
    Hit and Run
    Supported Skills have 40% more Skill Speed
    also: Supported Skills become usable after you have moved 10 metres Supported Skills become unusable again after use
    ×1.4
    all damage
    cost ×1
  4. #4
    Hourglass
    Supported Skills deal 30% more Damage
    also: Supported Skills have a Cooldown of 10 seconds
    ×1.3
    all damage
    cost ×1

12 supports for one kind of damage

These help only the part of Lunar Assault's damage they name: physical, hits, area, damage over time, or an ailment it has to inflict first.

  1. #1
    Concentrated Area
    Supported Skills deal 30% more Area Damage
    also: Supported Skills have 50% less Area of Effect
    ×1.3
    area damage
    cost ×1
  2. #2
    Swift Affliction I
    Supported Skills deal 30% more non-Ailment Damage over Time
    also: 20% less Duration of Supported Skills and Damaging Ailments they inflict
    ×1.3
    non-ailment damage over time
    cost ×1
  3. #3
    Swift Affliction II
    Supported Skills deal 30% more non-Ailment Damage over Time
    also: 10% less Duration of Supported Skills and Damaging Ailments they inflict
    ×1.3
    non-ailment damage over time
    cost ×1
  4. #4
    Brutality II
    Supported Skills deal 30% more Physical Damage
    ×1.3
    physical damage
    cost ×1.2
  5. #5
    Brutality III
    Supported Skills deal 30% more Physical Damage
    also: Hits with Supported Skills have 20% chance to ignore Enemy Physical Damage reduction
    ×1.3
    physical damage
    cost ×1.2
  6. #6
    Heft
    Supported Skills deal 30% more Maximum Physical Hit Damage
    ×1.3
    maximum physical hit damage
    cost ×1.2
  7. #7
    Elemental Focus
    Supported Skills deal 25% more Elemental Damage
    ×1.25
    elemental damage
    cost ×1
  8. #8
    Elemental Armament II
    Supported Skills deal 25% more Elemental Attack damage
    ×1.25
    elemental attack damage
    cost ×1.2
  9. #9
    Heavy Swing
    Supported Skills deal 35% more Melee Physical Damage
    Supported Skills have 10% less Attack Speed
    ×1.22
    melee physical damage
    cost ×1
  10. #10
    Deadly Poison II
    Supported Skills deal 30% less Damage with Hits
    100% more Magnitude of Poison inflicted with Supported Skills
    ×2
    magnitude of poison
    cost ×1
  11. #11
    Deep Cuts II
    100% more Magnitude of Bleeding inflicted with Supported Skills
    Supported Skills deal 30% less Damage with Hits
    ×2
    magnitude of bleeding
    cost ×1
  12. #12
    Searing Flame II
    Supported Skills deal 30% less Damage with Hits
    100% more Magnitude of Ignite inflicted with Supported Skills
    ×2
    magnitude of ignite
    cost ×1

43 supports that need a condition

  1. #1
    Arakaali's Lust
    only sometimes: Supported Skills deal 8% more Damage with Hits for each Poison on the Enemy, up to 40%
    ×1
    conditional
    cost ×1
  2. #2
    Bleed IV
    only sometimes: Supported Skills deal 30% more Melee Physical Damage against Bleeding enemies
    also: Hits from Supported Skills inflict Incision
    ×1
    conditional
    cost ×1
  3. #3
    Bloodlust
    only sometimes: Supported Skills deal 30% more Melee Physical Damage against Bleeding enemies
    ×1
    conditional
    cost ×1
  4. #4
    Cadence
    only sometimes: Supported Skills have 8% more Attack speed for each time they've been used Recently
    also: Supported Skills are unusable for 10 seconds after being used 6 or more times within four seconds
    ×1
    conditional
    cost ×1
  5. #5
    Concoct I
    only sometimes: Supported Skills consume 20% of your maximum Life Flask charges on use Supported Skills have 3% more Magnitude of Bleeding they inflict per Life Flask charge consumed
    ×1
    conditional
    cost ×1
  6. #6
    Concoct II
    only sometimes: Supported Skills consume 30% of your maximum Life Flask charges on use Supported Skills have 3% more Magnitude of Bleeding they inflict per Life Flask charge consumed
    ×1
    conditional
    cost ×1
  7. #7
    Culmination I
    only sometimes: Supported Skills deal 3% more Damage per Combo expended
    also: Supported Skills can gain up to 10 Combo Supported Skills expend all Combo on use · Supported Skills lose Combo if they generate no Combo for 4 seconds
    ×1
    conditional
    cost ×1
  8. #8
    Culmination II
    only sometimes: Supported Skills deal 4% more Damage per Combo expended
    also: Supported Skills can gain up to 10 Combo Supported Skills expend all Combo on use · Supported Skills lose Combo if they generate no Combo for 6 seconds
    ×1
    conditional
    cost ×1
  9. #9
    Derange
    only sometimes: Supported Skills deal 8% more non-Ailment Damage over time per 100 Intelligence
    ×1
    conditional
    cost ×1
  10. #10
    Ferocity
    only sometimes: Supported Skills will consume a Frenzy Charge on use if possible Supported Skills have 40% more Skill Speed when consuming Frenzy Charges
    ×1
    conditional
    cost ×1
  11. #11
    Frostfire
    only sometimes: 50% more Magnitude of Ignite inflicted on Frozen targets with Supported Skills
    only sometimes: 25% more Magnitude of Ignite inflicted on Frozen Unique enemies with Supported Skills
    ×1
    conditional
    cost ×1
  12. #12
    Minion Pact I
    only sometimes: Supported Skills remove 100% of your maximum Life from a nearby Minion on use to deal 30% more damage
    ×1
    conditional
    cost ×1
  13. #13
    Minion Pact II
    only sometimes: Supported Skills remove 150% of your maximum Life from a nearby Minion on use to deal 35% more damage
    ×1
    conditional
    cost ×1
  14. #14
    Mórrigan's Insight
    only sometimes: Supported Skills Consume Freeze on enemies to deal 50% more Damage
    ×1
    conditional
    cost ×1
  15. #15
    Profanity I
    only sometimes: Supported Skills deal 30% more Chaos Damage if consuming a Corpse
    also: Supported Skills consume a Corpse within 5 metres on use, if possible
    ×1
    conditional
    cost ×1
  16. #16
    Profanity II
    only sometimes: Supported Skills deal 5% more Chaos Damage for each Corpse consumed this way
    also: Supported Skills consume up to 10 Corpses within 5 metres on use, if possible
    ×1
    conditional
    cost ×1
  17. #17
    Rageforged I
    only sometimes: Supported Skills spend 10 Rage if possible to deal 35% more Damage
    ×1
    conditional
    cost ×1
  18. #18
    Rageforged II
    only sometimes: Supported Skills spend 10 Rage if possible to deal 35% more Damage
    also: Supported Skills have 30% chance to gain the benefits of this Support without spending additional Rage
    ×1
    conditional
    cost ×1
  19. #19
    Rigwald's Ferocity
    only sometimes: Supported Skills deal 15% less Damage if used in Weapon Set I
    only sometimes: Supported Skills deal 30% more Damage if used in Weapon Set II
    also: Supported Skills have 30% increased Attack Speed if used in Weapon Set I · Supported Skills have 10% reduced Attack Speed if used in Weapon Set II
    ×1
    conditional
    cost ×1
  20. #20
    Stoicism I
    only sometimes: Supported Skills gain 1% more Damage every second, up to 20% This Damage Bonus resets if you Dodge Roll or use a Travel Skill
    ×1
    conditional
    cost ×1
  21. #21
    Stoicism II
    only sometimes: Supported Skills gain 2% more Damage every second, up to 20% This Damage Bonus resets if you Dodge Roll or use a Travel Skill
    ×1
    conditional
    cost ×1
  22. #22
    Swift Affliction III
    only sometimes: Supported Skills deal 50% more non-Ailment damage over time if their duration is less than one second
    also: 30% less Duration of Supported Skills and Damaging Ailments they inflict
    ×1
    conditional
    cost ×1
  23. #23
    Vorana's Siege
    only sometimes: Supported Skills deal 20% more Damage with Hits against Isolated targets
    also: Supported Skills have 35% increased Area of Effect
    ×1
    conditional
    cost ×1
  24. #24
    Dauntless
    only sometimes: Supported Skills deal 3% more Damage with Hits for each quarter second you have been stationary, up to 45% This Damage bonus resets when you move
    also: Supported Skills cannot be used unless you have been stationary for 1.5 seconds This timer resets when you move
    ×1
    conditional
    cost ×1.1
  25. #25
    Execute I
    only sometimes: Supported Skills deal 40% more Damage with Hits against Enemies that are on Low Life
    ×1
    conditional
    cost ×1.1
  26. #26
    Execute II
    only sometimes: Supported Skills deal 50% more Damage with Hits against Enemies that are on Low Life
    ×1
    conditional
    cost ×1.1
  27. #27
    Execute III
    only sometimes: Supported Skills deal 30% more Damage with Hits while you are on Low Life
    only sometimes: Supported Skills deal 30% more Damage with Hits against Enemies that are on Low Life
    ×1
    conditional
    cost ×1.1
  28. #28
    Incision
    only sometimes: 3% more Magnitude of Bleeding inflicted with Supported Skills per Incision consumed Recently, up to 30%
    also: Hits from Supported Skills inflict Incision
    ×1
    conditional
    cost ×1.15
  29. #29
    Admixture
    only sometimes: 20% more Magnitude of Bleeding inflicted by Supported Skills against Poisoned Enemies
    only sometimes: 20% more Magnitude of Poison inflicted by Supported Skills against Bleeding Enemies
    ×1
    conditional
    cost ×1.2
  30. #30
    Clash
    only sometimes: Supported Skills deal 40% more Melee Damage against Enemies with a higher percentage of their Life remaining than you, but deal 20% less Melee Damage against Enemies with a lower percentage of their Life remaining than you
    ×1
    conditional
    cost ×1.2
  31. #31
    Close Combat I
    only sometimes: Supported Skills deal 20% more Attack Damage to enemies within 1 metre of you, scaling down to no bonus at 3.5 metres or further
    ×1
    conditional
    cost ×1.2
  32. #32
    Close Combat II
    only sometimes: Supported Skills deal 30% more Attack Damage to enemies within 1 metre of you, scaling down to no bonus at 3.5 metres or further
    ×1
    conditional
    cost ×1.2
  33. #33
    Elemental Armament III
    only sometimes: Supported Skills deal 12% more Attack Damage for each Elemental Ailment on Enemies they Hit
    ×1
    conditional
    cost ×1.2
  34. #34
    Longshot I
    only sometimes: Supported Skills deal 25% more Attack Damage to enemies further than 7 metres from you, scaling down to no bonus at 3.5 metres or closer
    ×1
    conditional
    cost ×1.2
  35. #35
    Longshot II
    only sometimes: Supported Skills deal 35% more Attack Damage to enemies further than 7 metres from you, scaling down to no bonus at 3.5 metres or closer
    ×1
    conditional
    cost ×1.2
  36. #36
    Momentum
    only sometimes: After moving at least 2 metres during a single use of a Supported Skill, the rest of that use deals 40% more Damage
    ×1
    conditional
    cost ×1.2
  37. #37
    Poison III
    only sometimes: 20% more Magnitude of Poison inflicted by Supported Skills against Bleeding Enemies
    also: Supported Skills have 60% chance to Poison on Hit
    ×1
    conditional
    cost ×1.2
  38. #38
    Pursuit I
    only sometimes: Supported Skills deal 20% more Melee Damage if you have Damaged an Enemy with a Projectile Attack Hit in the last eight seconds
    also: Supported Skills deal no Projectile damage
    ×1
    conditional
    cost ×1.2
  39. #39
    Pursuit II
    only sometimes: Supported Skills deal 25% more Melee Damage if you have Damaged an Enemy with a Projectile Attack Hit in the last eight seconds
    also: Supported Skills deal no Projectile damage
    ×1
    conditional
    cost ×1.2
  40. #40
    Pursuit III
    only sometimes: Supported Skills deal 30% more Melee Damage if you have Damaged an Enemy with a Projectile Attack Hit in the last two seconds
    also: Supported Skills deal no Projectile damage
    ×1
    conditional
    cost ×1.2
  41. #41
    Rising Tempest
    only sometimes: Supported Skills deal 12% more Elemental Damage for each Skill used Recently of a different Elemental type
    ×1
    conditional
    cost ×1.2
  42. #42
    Varashta's Blessing
    only sometimes: Supported Skills deal 10% more Damage for each different Command Skill you have used in the last 15 seconds
    ×1
    conditional
    cost ×1.2
  43. #43
    Exploit Weakness
    only sometimes: Supported Skills Consume Enemy Fully Broken Armour to deal 40% more Damage
    ×1
    conditional
    cost ×1.3

Left out, outclassed by a higher tier of the same family (one per family per skill): Deadly Poison I (by Deadly Poison II), Deep Cuts I (by Deep Cuts II), Searing Flame I (by Searing Flame II), Scouring Flame (by Searing Flame I), Combo Finisher I (by Combo Finisher II), Brutality I (by Brutality II), Elemental Armament I (by Elemental Armament II), Biting Frost I (by Mórrigan's Insight), Biting Frost II (by Mórrigan's Insight).

How it is counted

Which supports fit Lunar Assault: the game's skill types with Path of Building's rules (the full list). Multiplier = product of the support's "X% more/less Damage" and "more/less Attack, Cast or Skill Speed" lines; a line limited to one kind of damage (physical, hits, poison magnitude…) is kept to that kind. Cost = the support's cost & reservation multiplier (GrantedEffectsPerLevel.CostMultiplier).

Assumptions

  • "% increased" lines, crit multipliers and utility (more projectiles, chains, area) are not multipliers here: their worth depends on your build.
  • A multiplier for physical damage only helps the physical part of Lunar Assault's damage, and so on for each kind.
  • Read the "also" lines: some supports add a cooldown or a cost in Glory or Combo.