Bones Jones, Necromancer

During your upkeep, Skeletons and Zombies you
control get a +1/+1 counter. During your
endstep, create an X/X black Skeleton creature
token where X is the highest power among
creatures you control.
{u}{b}{b}, {t}: Exile a creature from your and an
opponent's graveyard. Choose a creature exiled
in this way, and make a black skeleton creature
token with identical keyword abilities,
power, and toughness.