Nick of the Christmas Spirit

At the beginning of each player's endstep if that
player attacked or didn't attack this turn
they get a naughty counter or a nice counter
respectively. At the beginning of each player's
upkeep that player discards or draws cards from
their hand equal to the number of naughty counter
or nice counters they have respectively. If a player
can't discard cards this way instead they lose that
much life.
You can't get naughty counters.