Reason: This page was adapted from the Minion Instability Keystone page on poewiki. Mechanics may need to be re-tested to confirm interactions and mechanics listed here.
Minion InstabilityMinion, Fire Level: 1Supports skills which create Minions, causing them to violently explode when reduced to Low Life.Minions from Supported Skills explode when reduced to Low Life, dealing 15% of their maximum Life as Fire Damage to surrounding EnemiesPlace into a Skill's Support Gem socket in the Skills Panel to apply its effects to that Skill. You cannot have multiple copies of the same Support Gem socketed at the same time.
The explosion is an areahit from the minion, dealing secondary damage.
Minions summoned from the Supported Skill must be reduced to Low Life to explode. Anything that causes a minion to die without ever having low life (e.g. dying in 1 hit, replacement, expiring duration) will not cause an explosion. Minions summoned from supported skills that are set to low life when spawned will explode instantly.
Modifiers
Minions do not have the player's global stats; player stats have to be specific for minions or allies to directly affect the explosion. Stats from Auras, Scepters, and Presence modifiers will continue to apply to nearby minions as they explode.
Because support gems affect all minions summoned from that minion skill, this support can be modified by other support gems despite itself not being a skill. The additional support gems need to be compatible with the supported minion skill, and said support gem's stats need to be compatible with the explosion's damage.
Lightning InfusionAttack, Lightning Tier: 1 Level: 1Supports Attacks, causing them to Gain Cold Damage but deal less Fire and Lightning DamageSupported Attacks Gain 25% of Damage as extra Lightning Damage Supported Attacks deal 50% less Cold and Fire DamagePlace into a Skill's Support Gem socket in the Skills Panel to apply its effects to that Skill. You cannot have multiple copies of the same Support Gem socketed at the same time.Cold InfusionAttack, Cold Tier: 1 Level: 1Supports Attacks, causing them to Gain Cold Damage but deal less Fire and Lightning DamageSupported Attacks Gain 25% of Damage as extra Cold Damage Supported Attacks deal 50% less Fire and Lightning DamagePlace into a Skill's Support Gem socket in the Skills Panel to apply its effects to that Skill. You cannot have multiple copies of the same Support Gem socketed at the same time.BrutalityPhysical Tier: 1 Level: 1 Cost & Reservation Multiplier: 120%Supports any skill that deals damage, boosting its Physical damage at the expense of all other Damage Types.Supported Skills deal 35% more Physical Damage Supported Skills deal no Chaos Damage Supported Skills deal no Elemental Damage.Place into a Skill's Support Gem socket in the Skills Panel to apply its effects to that Skill. You cannot have multiple copies of the same Support Gem socketed at the same time.Infernal LegionMinion, AoE, Fire Tier: 2 Level: 1Supports skills which create Minions, causing them and enemies near them to Burn. Damage dealt by the Burning is based off the Life of the supported Minion.Minions from Supported Skills take 20% of their maximum Life as Fire Damage per second Minions from Supported Skills Ignite Enemies within a radius of 1.5 metres as though dealing Base Fire Damage equal to 20% of Minion's Maximum LifePlace into a Skill's Support Gem socket in the Skills Panel to apply its effects to that Skill. You cannot have multiple copies of the same Support Gem socketed at the same time.
Lightning Infusion and 
Cold Infusion will reduce the fire damage of the explosion and 
Brutality will cause it to deal no fire damage entirely.
Infernal Legion alongside this support gem to the desired minion skill.
