War of the Spark

Callous Dismissal | Sorcery | | Return target nonland permanent to its owner's hand. Amass 1. (Put a +1/+1 counter on an Army you control. If you don't control one, create a 0/0 black Zombie Army creature token first.) | Mathias Kollros

Contentious Plan | Sorcery | | Proliferate. (Choose any number of permanents and/or players, then give each another counter of each kind already there.) Draw a card. | Eric Deschamps

Erratic Visionary | Creature | Human Wizard | {1}{U}, {T}: Draw a card, then discard a card. | Randy Vargas

Kasmina's Transmutation | Enchantment | Aura | Enchant creature Enchanted creature loses all abilities and has base power and toughness 1/1. | Uriah Voth

Sky Theater Strix | Creature | Bird | Flying Whenever you cast a noncreature spell, Sky Theater Strix gets +1/+0 until end of turn. | Chris Seaman

Teferi's Time Twist | Instant | | Exile target permanent you control. Return that card to the battlefield under its owner's control at the beginning of the next end step. If it enters the battlefield as a creature, it enters with an additional +1/+1 counter on it. | Ralph Horsley