Mordekaiser - Twice Slain [RAD-020/167]

[Accelerate] (You may pay :rb_energy_1::rb_rune_fury: as an additional cost to have me enter ready.)
[Assault 3] (+3 :rb_might: while I'm an attacker.)
Once each turn, if I would die, you may kill a friendly unit to heal me, exhaust me, and recall me instead.