Inferno Protocol is a capstone skill on branch 2 of Rafa's This Year's Gimmick skill tree in Borderlands 4.

Effects

While Arc-Knives are active, Rafa's Exo-Suit stores all Damage Dealt to him. The Exo-Suit then heats up and constantly deals a small amount of Incendiary Damage to him. Additionally, Rafa's Melee Attacks deal Bonus Incendiary Damage. A portion of all Damage Dealt to Rafa is also dealt to enemies he has Marked.

Using Blade Fury causes Rafa to consume all Stored Damage, and deals Bonus Incendiary Damage based on Stored Damage. A portion of all Damage dealt this way is returned to Rafa as Health.

• Health Drain: 1% of Current Health per second