Prosper, Tome-Bound

Prosper, Tome-Bound does two things, and both of them are excellent. First, at the beginning of your end step, he exiles the top card of your library and you can play it until the end of your next turn. Second, whenever you play a card from exile, you create a Treasure token.

That's a card every turn plus mana to cast it. For a Rakdos commander (red-black), this kind of sustained card advantage is rare and powerful.

The strategy

The game plan revolves around exile synergies:

1. Use Prosper and other "impulse draw" effects to exile cards from your library
2. Cast those exiled cards, generating Treasure tokens
3. Use the Treasure tokens to fuel bigger plays and artifact synergies
4. Win through value accumulation — you'll simply have more resources than everyone else

Prosper is unusually resilient because his value is spread across two axes. Even if opponents remove your Treasure tokens, you're still drawing extra cards. Even if they prevent the card draw, you're still making Treasures off other exile effects. They'd have to shut down both to stop you.

Key card categories

Ramp (~10 cards). Prosper generates his own ramp through Treasures, but you still want a fast start. Sol Ring, Arcane Signet, Rakdos Signet, and Mind Stone. Liquimetal Torque fixes mana early and enables artifact synergies later. Your Treasure tokens count as additional ramp — games where Prosper survives two turns feel like you have double mana.

Card draw / impulse draw (~10 cards). This is the core engine. Jeska's Will is the best card in the deck — exile up to three cards and make mana equal to an opponent's hand size. Outpost Siege and Theater of Horrors give you an exiled card every turn. Light Up the Stage and Reckless Impulse are cheap impulse draws that trigger Prosper's Treasure ability. Fevered Suspicion is expensive but exiles seven cards from an opponent's library — all playable, all triggering Treasures.

Removal (~8 cards). Chaos Warp and Feed the Swarm handle any permanent type. Rakdos Charm is flexible. Blasphemous Act for board wipes. Abrade hits artifacts and creatures.

Exile synergies. Passionate Archaeologist deals damage whenever you cast from exile. Wild-Magic Sorcerer gives cascade to the first spell you cast from exile each turn. Possibility Storm turns every spell into a random exile cast — each one triggers Prosper.

Treasure and artifact payoffs. Marionette Master deals damage when Treasures are sacrificed. Reckless Fireweaver pings for each artifact entering (Treasures count). Nadier's Nightblade drains opponents when tokens leave the battlefield. Xorn creates an extra Treasure whenever you'd create one or more.

What the skeleton covers

The pre-built list gives you the impulse draw engine, Treasure generation, and a solid Rakdos removal package. The mana base is straightforward for two colors, and the Treasure tokens provide additional fixing.

Where to customize

• Aristocrats: Lean into sacrifice synergies with Mayhem Devil, Disciple of the Vault, and Deadly Dispute. Every Treasure sacrifice becomes a drain effect.
• Big mana: Use accumulated Treasures to cast huge spells. Torment of Hailfire and Exsanguinate scale with your Treasure stockpile.
• Storm-lite: Chain cheap exile spells together in one turn with Bonus Round and Birgi, God of Storytelling for explosive turns.

Prosper is the kind of commander that gets stronger the longer the game goes. He doesn't need to combo off — he just needs to keep playing cards.