Tiamat
Legendary Creature — Dragon God
Flying
When Tiamat enters, if you cast it, search your library for up to five Dragon cards not named Tiamat that each have different names, reveal them, put them into your hand, then shuffle.
- CMC
- 7
- Mana cost
- Color identity
- BGRUW
- Rarity
- mythic
- Set
- Secret Lair Drop
- Price
- —
- EDHREC rank
- #2915
Tiamat enters and tutors five Dragons from your library directly to hand — that's an immediate refuel that most seven-mana spells can't match on raw card advantage alone. The cost is real: seven mana and WUBRG in the casting cost means you're either running five-color fixing or waiting, but the payoff is so lopsided that Dracogenius tribal shells and The Ur-Dragon decks treat it as a mandatory include.
Best Commanders
Commanders with the highest synergy
The Ur-Dragon
The Ur-Dragon already reduces Dragon costs by one, making Tiamat consistently castable a turn earlier, and when Tiamat resolves it loads your hand with exactly the Dragons you need to keep The Ur-Dragon's attack triggers firing every combat.
Format Analysis
Where it lives, where it can’t
| Format | Verdict |
|---|---|
| commander | legal |
| legacy | legal |
| modern | legal |
| pioneer | legal |
| standard | not legal |
| vintage | legal |
| pauper | not legal |
| oathbreaker | legal |
Commander is where Tiamat lives — tutoring five Dragons at once is a game-defining effect in a singleton format where finding the right Dragon at the right time is everything. In Legacy, Modern, and Pioneer, a seven-mana sorcery that doesn't immediately win or protect itself is too slow against efficient disruption, and Dragon tribal strategies in those formats don't generate enough mana acceleration to reliably cast it. Vintage has the raw speed to power it out, but the competitive environment punishes that kind of setup without a guaranteed kill. Oathbreaker is a theoretical home, though the 20-life total and faster clocks make Tiamat's payoff harder to realize. Stick to Commander — that's the only format where its ceiling is actually reachable.
Key Combos
Combo lines featuring this card
TiamatDracogenesisCloudstone Curio
Infinite LTB; Infinite ETB; Infinite storm count
View on Commander Spellbook ↗Price Context
Current price
unknown tier
Pricing data isn't available at the moment, so check Scryfall or TCGPlayer for a current number before buying. Tiamat's price has historically tracked its Commander demand, which is substantial — it shows up in roughly 68% of The Ur-Dragon decks — so don't expect a bargain-bin copy.
Explore
Sources
Updated . Data from Scryfall, EDHREC, and Commander Spellbook.