Koilos Roc
BROThe Brothers' War/#55/2022Common
Colour IDMV 5
Current paper retail
Card Kingdom$0.35
Cardmarket€0.02
ManaPool$0.15
TCGplayer$0.04
MTGO (Cardhoarder)
retail$0.03 tix
Paper retail history (USD)
3 providers
Latest $0.35High $0.35Low $0.35▲ 0.0%
Market and collecting
Market overview
$0.04TCGplayer, USD, retail, nonfoil
Latest observation: 2026-11-10
7d▲ 0.0%30d▲ 0.0%90d▼ 20.0%
90d high
$0.05
90d low
$0.04
Paper printings priced
1
Currently 1st
Cheapest paper printing
$0.03
The Brothers' War
- Up 0.0% over the last 30 days on TCGplayer.
- Currently 20% below its 90 day high of $0.05.
- Foil copies of this printing are trading 25% below nonfoil.
Find this printing on eBayView on TCGplayerAffiliate. MTGPrices may earn from qualifying eBay and TCGplayer purchases.
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Compare printings (1 priced)
Gameplay and rules
Creature — Bird
Flash
Flying
When this creature enters, create a tapped Powerstone token. (It's an artifact with ": Add . This mana can't be spent to cast a nonartifact spell.")
3 / 3
Keywords
FlyingFlash
Card capabilities
Derived deterministically from card types, Oracle text and keywords. Not a strategic evaluation.
Format legality
Primary formats
Eternal formats
Rulings (3)
wotc14 Oct 2022
Powerstone tokens are a kind of predefined token. Each one has the artifact subtype "Powerstone" and the ability "{T}: Add {C}. This mana can't be spent to cast a nonartifact spell."
wotc14 Oct 2022
Although all the cards in The Brothers' War that create Powerstone tokens create a tapped Powerstone token, entering the battlefield tapped isn't part of the token's definition. Notably, if you create a token that is a copy of a Powerstone token, the token copy won't enter the battlefield tapped.
wotc14 Oct 2022
You can use the {C} added by a Powerstone token on anything that isn't a nonartifact spell. This includes paying costs to activate abilities of both artifact and nonartifact permanents, paying ward costs, and so on.
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About this card
Koilos Roc
Koilos Roc is a Creature — Bird, with mana cost {4}{U} (mana value 5).
Format legality: Commander: legal, Modern: legal, Standard: not_legal, Pioneer: legal, Legacy: legal, Pauper: legal.
Current headline price on TCGplayer: $0.04 (up 0.0% over 30 days).
Frequently asked
Koilos Roc FAQ
How much is Koilos Roc worth?
The current TCGplayer USD retail price for Koilos Roc is $0.04. It is up 0.0% over the last 30 days. Over 90 days it has ranged from $0.04 to $0.05.
What is the cheapest printing of Koilos Roc?
The cheapest currently priced paper printing is from The Brothers' War at $0.03 on TCGplayer.
What set was Koilos Roc first printed in?
The earliest English paper printing that MTGPrices tracks is from BRO #55, released 2022-11-18.
Is there a foil version of Koilos Roc?
Yes. On this printing, foil copies trade at $0.03 versus $0.04 for nonfoil, which is 25% less expensive on TCGplayer.
Is Koilos Roc legal in Commander?
Yes, Koilos Roc is currently legal in Commander per Scryfall's legality feed.
Is Koilos Roc legal in Modern?
Yes, Koilos Roc is currently legal in Modern per Scryfall's legality feed.
Is Koilos Roc legal in Standard?
Koilos Roc is not currently legal in Standard per Scryfall's legality feed.
What does Koilos Roc do?
Koilos Roc is a Creature — Bird with mana cost {4}{U}. Its Oracle text reads: "Flash Flying When this creature enters, create a tapped Powerstone token. (It's an artifact with "{T}: Add {C}. This mana can't be spent to cast a nonartifact spell.")".