Greg da Arcunist

Whenever you cast an instant or sorcery spell,
roll a d20:
1: Return the spell to your hand and create Bill, a Legendary 0/1 white Human creature token that
can't attack or block.
9-10: Greg gets +X/+0 until end of turn where
X is the spell's mana value.
11-19: Scry X, where X is the spell's mana value.
Draw a card.
20: Copy the spell two times, you may choose
new targets for the copies.