mtg roon of the hidden realm commander deck EDH tech for Return that card to the battlefield under its owners control at the beginning of the next end step. Casual Commander Deck: Roon of

Cards like Agent of Masks, Blind Hunter, Ghost Council of Orzhova, Mourning Thrull, Orzhov Guildmage, and Pillory of the Sleepless all bled your opponent to death, draining one life point at a time (well, two in the case of Blind Hunter)

Planar Genesis Though simple, Planar Genesis is quite the potent card

This includes mana rocks, of which there are nine, Spawn/Scion makers (eight), cost reducers (four), and even a mana creature (Snapping VoidcrawSnapping Voidcraw), a card that steals lands (Oblivion SowerOblivion Sower) and a mana increaser (Forsaken MonumentForsaken Monument)

Trostani, Selesnya's Voice also likes when those 5/5 Horse tokens enter the battlefield

Make that potentially repeatable via Commanders like Abaddon the Despoiler, Yidris, Maelstrom Wielder, Maelstrom Wanderer, Averna, the Chaos Bloom, or even The First Sliver, and fireworks are sure to ensue