Chris Taylor
Contributor
In my mind it ought to be at a similar power-level to Memory Lapse. It takes 2 turns longer for the spell to come back (though at no cost), and the situation could have changed enough in that time to make it far less effective or even useless. Imagine countering a ramp spell, Standstill, wrath, any x-spell, Tragic Slip, or even another counterspell.
So...negate...