Maths teacher

+1: Create X 2/2 blue Maths Equation creature tokens, where X is the number of Maths Equations you have in your graveyard.
-X: Put X +1/+1 counters on each Maths Equation creature token you control, then discard X cards unless you sacrifice a nonland permanent.
-11: Create an emblem which says "Copy the first Maths Equation spell you cast each turn."