Santa Claus

Whenever Santa Claus attacks everyone creates a present token.
(A Present token is a colorless artifact token with “{T}, Sacrifice this artifact: Add one mana of any color.)
When Santa Claus deals combat damage to a player, this player has to sing a christmas song or read a poem.
"You better watch out, you better not cry, better not pout, I'm telling you why—Santa Claus is coming to town." — Haven Gillespie