Prossh, Skyraider of Kher is a Legendary Creature — Dragon (mana cost {3}{B}{R}{G}; Legendary Creature — Dragon; 5/5; rarity: mythic; most r...
Prossh, Skyraider of Kher is a Legendary Creature — Dragon (mana cost {3}{B}{R}{G}; Legendary Creature — Dragon; 5/5; rarity: mythic; most recent printing listed by Scryfall: Masters 25). Its colour identity is black, green, red, and its Commander legality on Scryfall is listed as legal. This guide explains what the card actually does, how a deck built around it wins, and which decisions matter most when you build your own version.
What Prossh, Skyraider of Kher does
The card's exact text is where every honest build starts:
When you cast this spell, create X 0/1 red Kobold creature tokens named Kobolds of Kher Keep, where X is the amount of mana spent to cast it.
Flying
Sacrifice another creature: Prossh gets +1/+0 until end of turn.
Read that text literally. Every line of it is a building instruction: the abilities tell you which supporting cards multiply the commander, which weaknesses opponents will attack, and which turns of the game the deck is designed to own. Brewers get into trouble when they build the deck they wish the commander were; build the one this text describes.
Build and check your list with the MTGBrew AI deck builder, and browse every card mentioned here in the MTGBrew card database on MTGBrew.
How the deck wins
Every slot should argue for itself against the card it replaced. Test a new inclusion through the deck's normal sequence — early development, mid-game pressure, late-game closing — and notice where it helps and where it sits dead. Cards that only shine in the best case are the first cuts when a proven role-player needs the slot back.
If this topic is on your bench, keep going with Dark Ritual in Commander: What It Does and Which Decks Want It — it covers the neighbouring decisions from a different angle, and the two pieces together give you a fuller picture than either one alone.
Keep reading
Keep reading: Dark Ritual in Commander: What It Does and Which Decks Want It and The One Ring in Modern and Commander: Protection and Burden Draw.
Building and tuning tips
Protect the plan, but do not smother it. A small protection package earns its keep when your commander or engine is the target; beyond that, extra protection dilutes the very strategy it guards. Run enough answers to stop a game-ending threat, and spend the remaining slots moving your own plan forward.
Keep the mana honest, too. A commander in black, green, red colours needs a mana base built for those colours in the proportions the deck actually casts — a lesson the MTGBrew Learn guides return to often, because no strategy survives a mana base that cannot cast it.
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