Shad, One with the Stone

Double Strike, Vigilance, Hexproof
Whenever Shad, One with the Stone kills a creature, put a stone counter on it.
Remove a stone counter from Shad: Shad gains deathtouch until end of turn.
Remove three stone counters from Shad: Put a +1/+1 counter on Shad.
Remove five stone counters from Shad: Shad gets +5/+5 until end of turn.