半神之拳 (Fists of the Demigod) (zhs)
Enchantment - Aura
(CMC 2)
Enchant creature
As long as enchanted creature is black, it gets +1/+1 and has wither. (It deals damage to creatures in the form of -1/-1 counters.)
As long as enchanted creature is red, it gets +1/+1 and has first strike.