Monster Mash XIII : One-Punch Monster!!

[Inevitability]

Sadly, I don't think that would work. "A spell-like ability has no verbal, somatic, or material component, nor does it require a focus or have an XP cost." Sacrifice and other unorthodox components are not mentioned, and must probably still be paid. But if you had something like a lich or a ghost that can reform after being destroyed, then it would be different...

I once toyed with the idea of doing that with a dvati. One blows up, the other uses Divine Metamagic Persistent Revenance to get the dead one back for 24 hours at no XP, level, or component cost.