Ashmouth Sovereign

At the beginning of your end step, create X 1/1
red Devil creature tokens with "when this creature dies, it deals 1 damage to any target", where X is
the number of nontoken creatures that died this
turn.
{1}{b}, Pay 2 life: You may sacrifice any number of
other creatures you control. Ashmouth Sovereign
gets +1/+0 until end of turn for each creature sacrificed this way.