LumeXeo

+1: LumeXeo deals 2 damage to target creature. If that creature would die this turn, put a loyalty counter on XeoLume.
0: Add either two red mana or two blue mana to your mana pool. Transform LumeXeo.
-4: Target opponent gets an emblem with "Whenever a creature enters the battlefield under your control, this emblem deals 2 damage to it."