Jace's signature move

Whenever you counter a spell, put a counter
counter on Jace's Signature Move.
Whenever a player casts a spell, counter that
spell if that spells converted mana cost is equal
too or less than the one plus the number of
counter counters on Jace's Signature move.
What do you mean this card is
overpowered, JACE is overpowered!