The Witness, First Knife

Flying, Deathtouch
Ward {3}, Pay 3 Life.
When The Witness, First Knife enters the battlefield, put a Salvation counter on it.
Gain a Salvation counter whenever a creature you control dies on your turn.

{w}{u}{b}{r}{g},{t}, Cascade as if you cast a spell of mana value X, where X is the number of Salvation counters on The Witness, First Knife.