Name: Fists of the Demigod
Type: Enchantment — Aura
Rules Text: 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.
Set/Rarity: Shadowmoor Common