Elira, Imperatio Delegate

Whenever you cast a non-creature spell, target opponent may pay toll 1(that opponent
may have you create a Treasure token.)
Whenever an opponent doesn't pay a toll, reveal
the top card of your library and gain life equal to
that card's converted mana cost. If you gained no
life this way, put that card in your hand.
"It would be unwise to fall out with the Imperatio"