Mordremoth, Binder of Wills

Reach
Plants you control get +1/+1. Other creatures you control are plants in addition to their other
creature types. At the beginning of each upkeep
choose target opponent. Whenever a creature
target opponent controls would die this turn,
exile it instead with a plant counter on it. You can
cast creatures spells with plant counters your oppenents own from exile. You may spend mana
as though it were mana of any color to cast this
spell.