New Identity

Corrupted: This spell has Casualty 4 if an
opponent has three or more poison counters.
Target player mills half of their starting deck size,
rounded down. Then that player draws a card,
gains three life, and each creature they control
becomes a phyrexian in addition to its other
types.
All will be one, whether by brute force or, as
Jin-Gixitas desires it, memory wipes.