Censer Carrier

Skeletons and Zombies you control can't attack.
At the beginning of your end step, create a black
1/1 Skeleton creature token with "This attacks
each combat if able".
{1}{w/b}, {t}, Sacrifice a Zombie or Skeleton:
If you paid {b} to activate this, lose 1 life and you
draw a card. If you paid {w} to activate this, put a
+1/+1 counter on another creature you control
and it gains vigilance until end of turn.