Klaus, The Man in Red

At the beginning of your upkeep each player chooses either Naughty or Nice. For each Naughty chosen that player lose 2 life and You create a Coal artifact token with "{t}, sacrifice:
Add {c}". For each Nice chosen you gain 2 life
and create a Gift artifact token with "{t}, sacrifice: creatures you control get +1/+1 until
end of turn.
He's always watching you.