Retry The Problem

Choose one:
• Return X Maths Equations from your graveyard
to your hand and then exile X - 1 cards from your
hand. X cannot be smaller than 2.
• Return Maths Equation with converted mana
cost X or lower from the graveyard to either your
hand or the battlefield tapped.
Whenever this card would be put in your
graveyard, exile it instead.