Moria, the Fanged Snow

Whenever Moria attacks create a legendary 2/2
red and green Wolf creature token named Tal that's tapped and attacking.
Whenever Moria deals combat damage to a player, distribute that many +1/+1 counters amongst creatures that attacked this turn.
Whenever an opponent casts a nongreen noncreature spell, Moria deals damage to that player equal to its power.