Twinkling Arcane Overload

Twink and Wizard creature you control gets +X/+X
until end of turn, where X is the number of instants
and sorceries in your graveyard. Those creatures
gains hexproof and "This creature can't be blocked"
until end of turn.

Rebound
Buyback {3}{u}{u}

"When knowledge and youth converge, the arcane
power knows no bounds."