I suggested a more thematically concise and less individually punishing one.

Living Dead
Ability
Recast: 300/360s
Effect: Summons a Shadowy Simulcrum on to the field with [100-150%] of your HP. The Simulcrum redirects attacks targeting you to it. It expires after 10 seconds or once its HP has been reduced to 0.

In terms of what it allows, it still allows for solo-taking all busters at the moment, it's much more usable in solo/small content, and it doesn't eat up all healer resources unless = White Mage.

In terms of function

E1S: redirecting the attack means there's one tank swap that doesn't have to happen immediately (You won't take the vuln)
E2S: You won't need a Bene if taking it naked.
E3S: Don't need the healing
E4S: You'll take one hit, which should be survivable, from the stomper. Similar to old Holmgang.