Phyrexian Perdition

Whenever a creature would die and be sent to a
graveyard, exile it with a Perdition counter on it
instead.
{p/b}{p/b}{p/b}: Create a token of target creature in exile
that has a perdition counter on it except it's base
power and toughness is 1. Remove the Perdition
counter from it and it gains haste until end of
turn. Exile the token at the beginning of the next
end step. Activate only as a sorcery.