Mortician Beetle
{B}
Creature -- Insect
1/1
Whenever a player sacrifices a creature, you may put a +1/+1 counter on ~this~.
Thraximundar
{4}{U}{B}{R}
Legendary Creature -- Zombie Assassin
6/6
Haste
Whenever ~this~ attacks, defending player sacrifices a creature of their choice.
Whenever a player sacrifices a creature, you may put a +1/+1 counter on ~this~.