Rashad, studious feline

Delve magic (Each instant and/or sorcery's you exile
from your graveyard while casting this spell pays for {1}.)
When Rashad, studious feline enter the
battlefield all instants and sorcery's in exile gain suspend X where X is there mana cost.
{3}{u}: You may exile target instant or sorcery from
your graveyard. Exile Rashad, studious feline,
return to the battlefield on the begging of your
next end step.