Satoru Gojo, the Honored One

Shroud
Mentor
Whenever you cast an instant or sorcery spell,
you may discard a card, if you do, draw two cards
and add {u}{r} to your mana pool.
Hollow Purple —{u}{r}, {t}: Exile target creature. Activate only if you have cast three or more
instants and/or sorcery spells this turn.