Jarate

This card's name is Trinisphere
As long as Trinisphere is untapped, each spell
that would cost less than three mana to cast costs
three mana to cast. (Additional mana in the cost
may be paid with any color of mana or colorless
mana. For example, a spell that would cost 1{b} to cast costs 2{b} to cast instead.)
Heads Up!