Thassa, Deep-Dwelling
Thassa, Deep-Dwelling: Legendary Enchantment Creature - God, Theros Beyond Death. MTG card printings, market prices, rulings, and format legality on Mana Grove.
- Mana cost
- {3}{U}
- Mana value
- 4
- Type
- Legendary Enchantment Creature - God
- Colour identity
- Blue (U)
- Power / toughness
- 6/5
- Rarity
- Mythic
- Set
- Theros Beyond Death (THB)
- Released
- 2020-01-24
- Collector number
- 71
- Artist
- Zack Stella
- Keywords
- Indestructible
- Commander
- Can be your commander
Build around this card with Grover
About Thassa, Deep-Dwelling
Thassa, Deep-Dwelling is a Magic: The Gathering card, a mythic rare blue legendary enchantment creature from Theros Beyond Death (THB), an expansion set released in January 2020. It is collector number 71 in that set, with art by Zack Stella. It costs {3}{U} (three generic and one blue mana) to cast, for a mana value of 4. It is a 6/5 creature. Its colour identity is blue. It is legal in Pioneer, Modern, Legacy, Vintage, Commander, Duel Commander, Oathbreaker, Brawl, Historic, Timeless, Gladiator and Penny Dreadful. It has been printed in 5 sets, from Theros Beyond Death (2020) to The List (2020). It can be your commander. The latest aggregated market price for this printing is $27.54 (normal finish, as of 2026-10-23).
Card text
Indestructible
As long as your devotion to blue is less than five, Thassa isn't a creature.
At the beginning of your end step, exile up to one other target creature you control, then return that card to the battlefield under your control.
{3}{U}: Tap another target creature.
Market price
Latest aggregated market price for the normal finish of this printing: $27.54 (as of 2026-10-23).
The figure covers this printing only; other printings carry their own price on their own page.
Format legality
Legality of Thassa, Deep-Dwelling by format. Formats in which it is not legal are not listed.
| Pioneer | Legal |
|---|---|
| Modern | Legal |
| Legacy | Legal |
| Vintage | Legal |
| Commander | Legal |
| Duel Commander | Legal |
| Oathbreaker | Legal |
| Brawl | Legal |
| Historic | Legal |
| Timeless | Legal |
| Gladiator | Legal |
| Penny Dreadful | Legal |
Other printings of Thassa, Deep-Dwelling
Thassa, Deep-Dwelling has been printed in 5 sets. The other printings are listed newest first, with the rarity and release year of each.
| Printing | Rarity | Year |
|---|---|---|
| The List (PLST) #THB-71 | Mythic | 2026 |
| Secret Lair Drop (SLD) #1279 | Mythic | 2023 |
| Magic Online Promos (PRM) #79853 | Mythic | 2020 |
| Theros Beyond Death Promos (PTHB) #71p | Mythic | 2020 |
| Theros Beyond Death Promos (PTHB) #71s | Mythic | 2020 |
| Theros Beyond Death (THB) #261 | Mythic | 2020 |
Official rulings
The 8 most recent official rulings for Thassa, Deep-Dwelling, newest first.
- If a God stops being a creature, it loses the type creature and the creature type God. It continues to be a legendary enchantment.
- Counters put on a God remain on it while it’s not a creature, even if they have no effect.
- When a God enters the battlefield, your devotion to its color (including the mana symbols in the mana cost of the God itself) will determine if a creature entered the battlefield or not for abilities that trigger whenever a creature enters the battlefield.
- If you gain control of a creature “until end of turn,” you’ll control it during your end step.
- The abilities of Gods function as long as they’re on the battlefield, regardless of whether they’re creatures.
- As a God enters the battlefield, your devotion to its color will determine whether any replacement effects that affect creatures entering the battlefield apply to that God. Because replacement effects are considered before the God is on the battlefield, the mana symbols in its mana cost won’t be counted when determining this.
- When the card returns to the battlefield, it will be a new object with no connection to the card that was exiled. Auras attached to the exiled creature will be put into their owners’ graveyards. Any Equipment will become unattached and remain on the battlefield. Any counters on the exiled creature will cease to exist.
- If an activated ability or triggered ability has an effect that depends on your devotion to a color, you count the number of mana symbols of that color among the mana costs of permanents you control as the ability resolves. The permanent with that ability will be counted if it’s still on the battlefield at that time.
Similar cards
Other enchantment creature cards with a blue colour identity, ranked by how often they appear in Commander decks.