Best Support Gems for Skeletal Storm Mage
183 support gems fit Skeletal Storm Mage in Path of Exile 2. 3 raise all of its damage or speed with a fixed multiplier; the biggest: Bidding II (×1.3, cost ×1), Feeding Frenzy I (×1.3, cost ×1), Feeding Frenzy II (×1.3, cost ×1). 11 more only multiply one kind of damage (physical, hits, area, ailments…), and 14 only work under a condition. Patch 0.5.5, from the game files.
3 supports that multiply all of Skeletal Storm Mage's damage
#1Bidding IIrecommended by the gameSupported Minions' Command Skills deal 30% more Damagealso: Supported Minions have 30% increased Cooldown Recovery Rate for Command Skills×1.3all damagecost ×1
#2Feeding Frenzy Irecommended by the gameMinions from Supported Skills deal 30% more Damagealso: Minions from Supported Skills take 20% more Damage×1.3all damagecost ×1
#3Feeding Frenzy IIrecommended by the gameMinions from Supported Skills deal 30% more Damagealso: Minions from Supported Skills take 15% more Damage×1.3all damagecost ×1
11 supports for one kind of damage
These help only the part of Skeletal Storm Mage's damage they name: physical, hits, area, damage over time, or an ailment it has to inflict first.
#1Concentrated AreaSupported Skills deal 30% more Area Damagealso: Supported Skills have 50% less Area of Effect×1.3area damagecost ×1
#2Swift Affliction ISupported Skills deal 30% more non-Ailment Damage over Timealso: 20% less Duration of Supported Skills and Damaging Ailments they inflict×1.3non-ailment damage over timecost ×1
#3Swift Affliction IISupported Skills deal 30% more non-Ailment Damage over Timealso: 10% less Duration of Supported Skills and Damaging Ailments they inflict×1.3non-ailment damage over timecost ×1
#4Brutality IISupported Skills deal 30% more Physical Damage×1.3physical damagecost ×1.2
#5Brutality IIISupported Skills deal 30% more Physical Damagealso: Hits with Supported Skills have 20% chance to ignore Enemy Physical Damage reduction×1.3physical damagecost ×1.2
#6HeftSupported Skills deal 30% more Maximum Physical Hit Damage×1.3maximum physical hit damagecost ×1.2
#7Controlled DestructionSupported Spells deal 25% more Hit Damage×1.25hit damagecost ×1
#8×1.25elemental damagecost ×1
#9Deadly Poison IISupported Skills deal 30% less Damage with Hits100% more Magnitude of Poison inflicted with Supported Skills×2magnitude of poisoncost ×1
#10Deep Cuts II100% more Magnitude of Bleeding inflicted with Supported SkillsSupported Skills deal 30% less Damage with Hits×2magnitude of bleedingcost ×1
#11Searing Flame IISupported Skills deal 30% less Damage with Hits100% more Magnitude of Ignite inflicted with Supported Skills×2magnitude of ignitecost ×1
14 supports that need a condition
#1Arakaali's Lustonly sometimes: Supported Skills deal 8% more Damage with Hits for each Poison on the Enemy, up to 40%×1conditionalcost ×1
#2Bleed IVonly sometimes: Supported Skills deal 30% more Melee Physical Damage against Bleeding enemiesalso: Hits from Supported Skills inflict Incision×1conditionalcost ×1
#3Frostfireonly sometimes: 50% more Magnitude of Ignite inflicted on Frozen targets with Supported Skillsonly sometimes: 25% more Magnitude of Ignite inflicted on Frozen Unique enemies with Supported Skills×1conditionalcost ×1
#4Mórrigan's Insightonly sometimes: Supported Skills Consume Freeze on enemies to deal 50% more Damage×1conditionalcost ×1
#5Musterrecommended by the gameonly sometimes: Supported Minions deal 7% more damage for each different type of Reviving Minion you have summoned×1conditionalcost ×1
#6Swift Affliction IIIonly sometimes: Supported Skills deal 50% more non-Ailment damage over time if their duration is less than one secondalso: 30% less Duration of Supported Skills and Damaging Ailments they inflict×1conditionalcost ×1- #7Vorana's Siegeonly sometimes: Supported Skills deal 20% more Damage with Hits against Isolated targetsalso: Supported Skills have 35% increased Area of Effect×1conditionalcost ×1
#8Execute Ionly sometimes: Supported Skills deal 40% more Damage with Hits against Enemies that are on Low Life×1conditionalcost ×1.1
#9Execute IIonly sometimes: Supported Skills deal 50% more Damage with Hits against Enemies that are on Low Life×1conditionalcost ×1.1
#10Execute IIIonly sometimes: Supported Skills deal 30% more Damage with Hits while you are on Low Lifeonly sometimes: Supported Skills deal 30% more Damage with Hits against Enemies that are on Low Life×1conditionalcost ×1.1
#11Crazed Minionsonly sometimes: Supported Minions deal 30% more Damage if they have Revived Recently×1conditionalcost ×1.15
#12Admixtureonly sometimes: 20% more Magnitude of Bleeding inflicted by Supported Skills against Poisoned Enemiesonly sometimes: 20% more Magnitude of Poison inflicted by Supported Skills against Bleeding Enemies×1conditionalcost ×1.2
#13Poison IIIonly sometimes: 20% more Magnitude of Poison inflicted by Supported Skills against Bleeding Enemiesalso: Supported Skills have 60% chance to Poison on Hit×1conditionalcost ×1.2
#14Exploit Weaknessonly sometimes: Supported Skills Consume Enemy Fully Broken Armour to deal 40% more Damage×1conditionalcost ×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), Brutality I (by Brutality II), Bidding I (by Bidding II), Biting Frost I (by Mórrigan's Insight), Biting Frost II (by Mórrigan's Insight).
How it is counted
Which supports fit Skeletal Storm Mage: 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 Skeletal Storm Mage's damage, and so on for each kind.
- Read the "also" lines: some supports add a cooldown or a cost in Glory or Combo.