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Karn's Bastion
PRM · Magic Online Promos #72223 · Rare · released 2019-05-10
Land
{T}: Add {C}.
{4}, {T}: Proliferate. (Choose any number of permanents and/or players, then give each another counter of each kind already there.)
Karn's Bastion is a rare land from Magic Online Promos (2019). It has been printed 13 times across 11 sets, from 2019 to 2025. Recent market prices range from $2.50 to $8.20 depending on printing and finish. It is legal in Pioneer, Modern, Legacy, Vintage, Commander, Oathbreaker, Historic, Brawl and Penny Dreadful.
Format legality
Where you can play Karn's Bastion in sanctioned and popular formats.
StandardNot legal
PioneerLegal
ModernLegal
LegacyLegal
VintageLegal
CommanderLegal
PauperNot legal
OathbreakerLegal
HistoricLegal
BrawlLegal
Penny DreadfulLegal
All printings (13)
Prices range from $2.50 to $8.20 across finishes. Cheapest printing: Edge of Eternities Commander at $2.50.
| Set | No. | Rarity | Price | Foil |
|---|---|---|---|---|
| War of the Spark Promos | 248s | Rare | — | $5.57 |
| War of the Spark Promos | 248p | Rare | $2.97 | $5.50 |
| War of the Spark Promos | 248 | Rare | — | $5.63 |
| War of the Spark | 248 | Rare | $3.29 | $5.39 |
| Magic Online Promos This page | 72223 | Rare | — | — |
| New Capenna Commander | 410 | Rare | $4.07 | — |
| Phyrexia: All Will Be One Commander | 156 | Rare | $3.83 | — |
| March of the Machine Commander | 409 | Rare | $4.41 | — |
| Commander Masters | 1007 | Rare | $3.73 | — |
| The Lost Caverns of Ixalan Commander | 339 | Rare | $3.62 | — |
| Ravnica Remastered | 464 | Rare | $4.05 | $5.12 |
| Secret Lair Drop | 1751 | Rare | $8.20 | — |
| Edge of Eternities Commander | 163 | Rare | $2.50 | — |
More from Magic Online Promos
Rulings
Official rulings from Wizards of the Coast (6).
- 2023-02-04To proliferate, you can choose any permanent that has a counter, including ones controlled by opponents. You can choose any player who has a counter, including opponents. You can't choose cards in any zone other than the battlefield, even if they have counters on them.
- 2023-02-04You don't have to choose every permanent or player that has a counter, only the ones you want to add another counter to. Since "any number" includes zero, you don't have to choose any permanents at all, and you don't have to choose any players at all.
- 2023-02-04If a player or permanent has more than one kind of counter on it, and you choose for it to get additional counters, it must get one of each kind of counter it already has. You can't have it get just one kind of counter it already has and not the others.
- 2023-02-04An ability that triggers "Whenever you proliferate" triggers even if you chose no permanents or players while doing so.
- 2023-02-04Players can respond to a spell or ability whose effect includes proliferating. Once that spell or ability starts to resolve, however, and its controller chooses which permanents and players will get new counters, it's too late for anyone to respond.
- 2023-02-04If a permanent ever has both +1/+1 counters and -1/-1 counters on it at the same time, they're removed in pairs as a state-based action so that the permanent has only one of those kinds of counters on it.
Frequently asked questions
Is Karn's Bastion legal in Commander?
Yes — Karn's Bastion is legal in Commander (EDH).
What formats is Karn's Bastion legal in?
Karn's Bastion is legal in Pioneer, Modern, Legacy, Vintage, Commander, Oathbreaker, Historic, Brawl and Penny Dreadful.
How many times has Karn's Bastion been printed?
Karn's Bastion has been printed 13 times across 11 sets, from 2019 to 2025.
What is the cheapest printing of Karn's Bastion?
The cheapest printing is Edge of Eternities Commander (#163) at about $2.50.
Who illustrated Karn's Bastion?
This printing of Karn's Bastion was illustrated by Piotr Dura.