Divine Parity

•Opponents, within the radius of the Aura you've
attached to yourself, receive half as much Healing
rounded down, when they are Healed by another
Opponent.
•FIELD MARSHALL: You may play this card as
you enchant yourself, for free.
•If you play another SPELL with FIELD
MARSHALL, or the Aura attached to you is
DESTROYED, or you attach a new Aura to
yourself, Opponents are no longer affected by this
SPELL. You put this SPELL in your graveyard.