Combos:

Niv-Mizzet, the Firemind + Curiosity To draw cards while doing damage

Power Artifact + Grim Monolith To accelerate mana

Gather Specimens + Pongify + Radiate: Destroy all creatures for an army of 3/3 apes

Turnabout + Mirror Sheen To get Infinite mana. Boost with Mischievous Quanar for infinite copies of target instant or sorcery

Tamiyo, the Moon Sage Buy + Seismic Assault Buy Cast these two. Activate Tamiyos ultimate ability and get her Emblem. Then activate Seismic Assault using any land to Deal 2 damage to a target. When that land card is put into your graveyard, return it to your hand. Repeat for infinite damage.

Cackling Counterpart + Nucklavee Have knucklavee on the battlefield. Cast Cackling Counterpart targeting it. Return counterpart to your hand to repeat again.

Djinn Illuminatus + Twiddle + Tolarian Academy Tap Academy for mana. Cast Twiddle to untap Academy. Use Djinn Illuminatus to replicate each use of Twiddle. Works great with Gilded Lotus or Sol Ring aswell. This ramps your mana huge for the next spell you replicate

Knowledge Exploitation + Eye of the Storm Play Eye of the Storm. Play knowledge exploitation, find an instant or sorcery from a players deck. Cast it, triggering Eye for another go round. Repeat until all instants and sorceries are gone.