Chagren, Nightmare Savant

Flying

As long as three or more cards are exiled under
Chagren, it has hexproof and lifelink.

Spells each player casts cost {1} more to cast for each
spell of that type exiled under Chagren

Whenever you counter a spell, you may exile it
under Chagren. If you do, put a +1/+1 counter on Chagren