1-2 Extra Chained Energised Hits and 2.5-10% Impact on Energised Hits.
Increased Cleave and 5-20% Heavy Melee Attack Damage on Energised Attacks.
17.5-25% Toughness on Elite Kill.
Critical hit chance scales by your current heat level up to 27.5-50%. Also increases critical ranged attacks damage by 4-10%.