Autonomous Assembler (Extended Art) [The Brothers' War] San Diego Comic-Con 2019 You may play any number

You may play any number of cards from one of those piles without paying their mana costs

we turn a bunch of little lightnings into one big lightning

and his citadels lie empty

Set: Double Masters Type: Creature — Bird Rarity: Common Cost: {3}{B} This spell costs {3} less to cast if a creature died this turn

Set: Zendikar Expeditions Type: Land — Swamp Mountain Mythic Cost: ({T}: Add {B} or {R}

Autonomous Assembler (Extended Art) [The Brothers' War] San Diego Comic-Con 2019 You may play any numberSet: The Brothers' War Type: Artifact Creature Assembly Worker Rarity: Rare Cost: {5} Prototype {1}{W} 2 2 (You may cast this spell with different mana cost, color, and size. It keeps its abilities and types.) Vigilance {1}, {T}: Put a +1 +1 counter on target Assembly Worker you control.