Summoned Dingus

Flash, flying
As you cast Summoned Dingus, counter target
spell. That spell's controller gains control of
Summoned Dingus.
Summoned Dingus enters the battlefield with X
+1/+1 counters on it, where X is the mana value
of the spell countered by Summoned Dingus.
"I... meant to do that."