Idea for a new sentinel/gunner 5 star Ed. Please give constructive criticism.

Fury:
Jaws of Death
Deal 3 hits of true damage and 2 hits of random damage to all enemies.
-Remove golden block and damage type invulnerability effects from enemies and inflict defense down for 3 turns.
-Doom enemies suffering from perfect corruption or 3 different damage over time effects for 4 turns.
-Heal all allies based on your defense, and cleanse and grant perfect immunity to all allies suffering from Permadeath for 2 turns.
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Basic Abilities

Present:
Rapid Fire
Deal 2 hits of true damage and 1 hit of random damage to all enemies.
-35% chance to critically strike on each hit.
-Deal additional random damage for each damage over time effect on each ally.

Past:
Blood Filled Trench
Deal 2 hits of true damage and 1 hit of random damage to all enemies.