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, Hope of Humanity.