Thassa's Emissary
Enchantment Creature — Crab
Bestow 
(If you cast this card for its bestow cost, it's an Aura spell with enchant creature. It becomes a creature again if it's not attached.)
Whenever this creature or enchanted creature deals combat damage to a player, draw a card.
Enchanted creature gets +3/+3.
- CMC
- 4
- Mana cost
- Color identity
- U
- Rarity
- uncommon
- Set
- Theros
- Price
- $0.24
- EDHREC rank
- #15103
Thassa's Emissary staples a Ophidian-style draw trigger onto every combat damage hit from any creature you control — that's a repeatable card advantage engine, not a one-shot effect. The six-mana cost is real, but in the right shell, specifically anything built around a single massive, evasive threat like Charix, the Raging Isle, it pays off fast.
Best Commanders
Commanders with the highest synergy
Charix, the Raging Isle
Charix, the Raging Isle swings in as a 17/1 that rarely gets blocked, meaning Thassa's Emissary's bestow trigger converts almost every attack into a free card — the enchantment relationship here is less synergy and more engine.
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 |
Thassa's Emissary is effectively a Commander card. In competitive Constructed formats like Modern, Pioneer, or Legacy, six mana for a 2/5 enchantment creature that draws cards on combat damage is far too slow against interaction-dense fields where the damage step is never guaranteed. Commander is where it earns its spot: games go long, evasive threats are common, and one resolved bestow can generate three or four cards before anyone answers it. In Oathbreaker the same logic applies at a smaller scale, though the faster pace of the format makes the six-mana ask harder to justify unless your planeswalker creates an immediate opening.
Key Combos
Combo lines featuring this card
Price Context
Current price
$0.24 bulk tier
At $0.24, Thassa's Emissary is deep bulk — easy to pick up in trade binders or as a throw-in. Don't expect the price to move; it's a narrow Commander role-player with no competitive demand pulling the market upward.
Explore
Sources
Mentioned
Updated . Data from Scryfall, EDHREC, and Commander Spellbook.