Righteous Guardian

Sacrifice this creature: Target creature you control gains indestructible until end of turn.
Reincarnate {1}{w} (When you cast a creature spell, you may pay the reincarnate cost of one creature card in your graveyard. If you do, exile that card and add its text to the creature spell's.)
"I will gladly give myself for the innocent, in this life and any that may follow."