Crucius, Frailties' End

Flying, hexproof
Each creature you control with an etherium counter on it gets +1/+1 has indestructible and
is an artifact in addition to its other types.
{w}{u}{b}: Put an etherium counter on another nonartifact creature you control. If you do, you may put a -1/-1 counter on target creature, scry 1, and gain 1 life.