Ossuary Rats
Creature — Rat
When this creature enters, it deals X damage to target creature or planeswalker an opponent controls, where X is the number of creature cards in your graveyard.
- CMC
- 6
- Mana cost
- Color identity
- B
- Rarity
- common
- Set
- Jumpstart 2022
- Price
- $0.17
- EDHREC rank
- #19535
Ossuary Rats enters, makes each opponent discard a card, and replaces itself with a draw — three lines of text that justify the slot before it ever attacks. Ashcoat of the Shadow Swarm turns every subsequent Rat into a repeat of that trigger, which is where the card stops being a one-shot effect and starts being an engine piece.
Best Commanders
Commanders with the highest synergy

Ashcoat of the Shadow Swarm
Ashcoat of the Shadow Swarm buffs every Rat that enters after it, so Ossuary Rats isn't just a discard trigger on arrival — it's a growing body that threatens to close games once the swarm is assembled.
Format Analysis
Where it lives, where it can’t
| Format | Verdict |
|---|---|
| commander | legal |
| legacy | legal |
| modern | not legal |
| pioneer | not legal |
| standard | not legal |
| vintage | legal |
| pauper | legal |
| oathbreaker | legal |
Commander is the natural home for Ossuary Rats: the discard hits three opponents at once, tripling the effect of a single cast, and the card draw keeps the Rat player ahead in longer games. In Pauper it's legal but competes in a format where one-mana discard spells exist and a two-mana 1/1 with a enters-the-battlefield trigger has to justify the slot against faster black commons. Legacy and Vintage allow it but will never want it — the power floor there is simply too high for a creature doing what instants and sorceries do better and cheaper. Ossuary Rats is a Commander card wearing a multi-format legal badge.
Key Combos
Combo lines featuring this card
Price Context
Current price
$0.17 bulk tier
At $0.17, Ossuary Rats is deep bulk — pick it up in any common lot or as a throw-in without a second thought. Bulk commons with niche tribal relevance don't move much, so don't expect the price to shift unless Rat tribal breaks into a high-profile format.
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Sources
Mentioned
Updated . Data from Scryfall, EDHREC, and Commander Spellbook.