All 22 Combos with Ovika, Enigma Goliath

Ovika, Enigma Goliath + Veyran, Voice of Duality + Skirk Prospector + Reiterate

Other: Infinite copies of instant and sorcery spells on the stack, Infinite death triggers, Infinite ETB, Infinite LTB, Infinitely large creature until end of turn, Infinite magecraft triggers, Infinite sacrifice triggers, Infinite storm count

Cast any other instant or sorcery spell, or wait for an opponent to cast one. Cast Reiterate with buyback by paying {4}{R}{R}, targeting the spell. Veyran and Ovika each trigger twice. Resolve both Veyran triggers, giving it +2/+2 until end of turn. Resolve both Ovika triggers, creating six 1/1 Phyrexian Goblin creature tokens with haste. Resolve Reiterate, creating a copy of the spell it was targeting and returning Reiterate to your hand. Veyran triggers twice, giving itself +2/+2 until end of turn. Activate Skirk Prospector six times by sacrificing the six Phyrexian Goblins, adding {4}{R}{R}. Repeat from step 2.