Ollie, Undead Idol

When Ollie, Undead Idol dies, you may cast
target instant or sorcery spell from a graveyard,
and you may spend mana as though it were mana
of any color to cast it. If a card cast this way
would be put into your graveyard, exile it instead.
You may cast Ollie from your graveyard.
"ZOMBANWA!! SUPER KAWAII ZOMBIE
IDOL, KU KU KU KUREIJI OLLIE DESU~!!"