Zombie Santa

If you control a zombie creature, all creatures get +2/+2
If you control a bird creature, Each player gains 1 life for each creature on the battlefield when Zombie Santa enters the battlefield.
As long as you control Zombie Santa, each player has to say Happy Holidays whenever a creature they control attacks.
"I never thought I would have to say this, but Santa must die!" - Lennier, Figure of Justice.