Force of Will

You may pay 1 life and exile a blue card from your hand rather than pay this spell's mana cost.
Counter target spell.

Legacy Championship

"Your artillery will burn itself out before I allow my focus to waver."

Dominaria Remastered

"Weren't you ever taught that it's rude to interrupt?"

Magic Online Promos

To determine the total cost of a spell, start with the mana cost or alternative cost you’re paying (such as the alternative cost of Force of Will), add any cost increases, then apply any cost reductions. Force of Will’s mana value is always 5, no matter what you paid to cast it.