Tappy, Pouncing Æther-Raptor

Flash
Counter target spell you don't control.
Overload {u}{u}{u}{r}{r}{r} (You may cast this spell
for its overload cost. If you do, change its text by replacing all instances of 'target' with 'each'.)
If the Overload cost was paid those spells deal
damage equal to their converted mana cost to the
spell's controller.
OK! FIRST, NO!!!