Cudgel Corpse

You can't cast Cudgel Corpse unless there
is a black creature card in your graveyard.
Whenever Cudgel Corpse attacks, if it's
equipped, defending player loses X life,
where X is its attack.
{p/b}, Sacrifice all Equipment you control: Create
a black Equipment Cudgel artifact token with "Equipped creature has menace" and
equip {p/b}.