Outlaws of Thunder Junction

Double Down | Enchantment | | Whenever you cast an outlaw spell, copy that spell. (Assassins, Mercenaries, Pirates, Rogues, and Warlocks are outlaws. Copies of permanent spells become tokens.) | Javier Charro

Geralf, the Fleshwright | Legendary Creature | Human Warlock | Whenever you cast a spell during your turn other than your first spell that turn, create a 2/2 blue and black Zombie Rogue creature token. Whenever a Zombie enters the battlefield under your control, put a +1/+1 counter on it for each other Zombie that entered the battlefield under your control this turn. | Chris Rahn

Jace Reawakened | Legendary Planeswalker | Jace | You can't cast this spell during your first, second, or third turns of the game. +1: Draw a card, then discard a card. +1: You may exile a nonland card with mana value 3 or less from your hand. If you do, it becomes plotted. −6: Until end of turn, whenever you cast a spell, copy it. You may choose new targets for the copy. | Cristi Balanescu

Assimilation Aegis | Artifact | Equipment | When Assimilation Aegis enters the battlefield, exile up to one target creature until Assimilation Aegis leaves the battlefield. Whenever Assimilation Aegis becomes attached to a creature, for as long as Assimilation Aegis remains attached to it, that creature becomes a copy of a creature card exiled with Assimilation Aegis. Equip {2} | Matt Stewart

Oko, the Ringleader | Legendary Planeswalker | Oko | At the beginning of combat on your turn, Oko, the Ringleader becomes a copy of up to one target creature you control until end of turn, except he has hexproof. +1: Draw two cards. If you've committed a crime this turn, discard a card. Otherwise, discard two cards. −1: Create a 3/3 green Elk creature token. −5: For each other nonland permanent you control, create a token that's a copy of that permanent. | Magali Villeneuve

Kellan, the Kid | Legendary Creature | Human Faerie Rogue | Flying, lifelink Whenever you cast a spell from anywhere other than your hand, you may cast a permanent spell with equal or lesser mana value from your hand without paying its mana cost. If you don't, you may put a land card from your hand onto the battlefield. | Magali Villeneuve