Ursine Monstrosity
Creature — Bear Mutant
Trample
At the beginning of combat on your turn, mill a card and choose an opponent at random. This creature attacks that player this combat if able. Until end of turn, this creature gains indestructible and gets +1/+1 for each card type among cards in your graveyard.
- CMC
- 3
- Mana cost
- Color identity
- G
- Rarity
- rare
- Set
- Duskmourn: House of Horror Commander
- Price
- $0.38
- EDHREC rank
- #9857
Ursine Monstrosity hits the battlefield as a massive trampling beater and immediately threatens to close games, but it demands you already have a discard outlet or hand-emptying strategy in place to flip it. In a deck built around Winter, Cynical Opportunist, that condition is trivially met — everywhere else, it's a conditional payoff that bricks in the wrong hand.
Best Commanders
Commanders with the highest synergy
Winter, Cynical Opportunist
Winter, Cynical Opportunist discards cards as a core loop, so Ursine Monstrosity flips almost automatically — it's a free massive threat bolted onto an engine that was already running.
Ayula, Queen Among Bears
Ayula, Queen Among Bears cares about Bears entering the battlefield, and Ursine Monstrosity is a Bear that can flip into an enormous attacker, giving Ayula both a tribal body and a late-game closer in one slot.
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 | not legal |
| oathbreaker | legal |
Ursine Monstrosity is legal in Commander, Legacy, Vintage, and Oathbreaker, but it's a Commander card through and through. Legacy and Vintage have no interest in a conditional six-plus-power creature that requires setup; those formats kill you before the flip condition matters. In Commander, the multiplayer pacing gives you time to empty your hand, and discard-synergy commanders make the condition trivially easy — that's the only context where Ursine Monstrosity is doing real work.
Key Combos
Combo lines featuring this card
Price Context
Current price
$0.38 bulk tier
At $0.38, Ursine Monstrosity is deep bulk — pick it up without thinking about the price. Bulk rares with narrow tribal and discard synergies don't appreciate meaningfully, so treat this as a cheap include for the right deck, not a spec.
Explore
Sources
Updated . Data from Scryfall, EDHREC, and Commander Spellbook.