Kiki-Jiki, Mirror Breaker [Jumpstart 2022] Arena League 2002 But where is the source

But where is the source

Set: Legends Type: Legendary Creature — Zombie Wizard Rarity: Rare Cost: {3}{B}{R} {2}{B}{R}

Set: Oversize Cards Type: Creature — Hydra Beast Rarity: Rare Cost: {X}{G} Feral Hydra enters the battlefield with X +1/+1 counters on it

"General *nuisance*

Kiki-Jiki, Mirror Breaker [Jumpstart 2022] Arena League 2002 But where is the sourceSet: Jumpstart 2022 Type: Legendary Creature Goblin Shaman Rarity: Mythic Cost: {2}{R}{R}{R} Haste {T}: Create a token that's a copy of target nonlegendary creature you control, except it has haste. Sacrifice it at the beginning of the next end step. Wanna see a neat trick?