Brainstealer Dragon
Creature — Dragon Horror
Flying
At the beginning of your end step, exile the top card of each opponent's library. You may play those cards for as long as they remain exiled. If you cast a spell this way, you may spend mana as though it were mana of any color to cast it.
Whenever a nonland permanent an opponent owns enters the battlefield under your control, they lose life equal to its mana value.
- CMC
- 7
- Mana cost
- Color identity
- B
- Rarity
- rare
- Set
- Commander Legends: Battle for Baldur's Gate
- Price
- $9.54
- EDHREC rank
- #2125
Brainstealer Dragon lands and immediately starts exiling the top cards of every opponent's library, letting you cast spells from exile whenever it deals combat damage — a repeatable theft engine stapled to a 6/6 flying body. The seven-mana cost is real, but the card does enough on entry that even one trigger justifies it, and Gonti, Canny Acquisitor decks treat it as a core piece rather than a luxury.
Best Commanders
Commanders with the highest synergy
Gonti, Canny Acquisitor
Gonti, Canny Acquisitor triggers off casting spells from exile, which means every hit Brainstealer Dragon lands doubles as a Gonti trigger — the two cards form a self-reinforcing engine that snowballs fast.
Captain N'ghathrod
Captain N'ghathrod mills opponents as a baseline gameplan, and Brainstealer Dragon extends that into free casts from exile, giving the deck a second axis of resource theft beyond what mill alone provides.
Gonti, Night Minister
Gonti, Night Minister cares about how many spells you've cast from opponents' hands and libraries, so Brainstealer Dragon's combat-damage triggers feed that count directly and accelerate whatever payoff Night Minister is building toward.
Sivitri, Dragon Master
Sivitri, Dragon Master tutors Dragons and reduces their costs, which means Brainstealer Dragon arrives cheaper and more reliably — at that discount it stops being a top-end gamble and becomes a consistent mid-game threat.
Tasha, the Witch Queen
Tasha, the Witch Queen generates Demon tokens whenever opponents cast spells from outside their hand, but also rewards you for casting opponents' cards yourself — Brainstealer Dragon's exile-and-cast effect feeds Tasha's token production and her overall steal-and-punish strategy.
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 |
Commander is where Brainstealer Dragon lives — three opponents means three exile triggers per upkeep and more combat-damage targets, which turns a slow engine into a genuine card-advantage avalanche. In Legacy and Vintage it's technically legal but practically irrelevant; seven mana buys instant wins in those formats, not a value dragon. Oathbreaker is the only other format worth noting, and there the smaller game state and faster pace makes the seven-mana ask harder to justify unless the spellbook is built around it.
Key Combos
Combo lines featuring this card
Budget Alternatives
Cheaper options that do most of the same work
Thief of Sanity costs a fraction of the price and exiles from the top of an opponent's library on combat damage, hitting the same core effect at three mana — the trade-off is a 2/2 body that dies to a stiff breeze. Gonti, Lord of Luxury is another sub-$1 option that exiles on entry rather than requiring combat, which is more resilient but gives you only one card per cast rather than Brainstealer Dragon's ongoing per-upkeep drip.
Price Context
Current price
$9.54 mid tier
At $9.54, Brainstealer Dragon sits in the mid tier — expensive enough to feel like a deliberate inclusion, cheap enough that it doesn't break a budget build. It sees steady demand from Gonti and theft-strategy decks, so the price is unlikely to crater, but it's not a card you're buying for the speculation angle.
Explore
Sources
Updated . Data from Scryfall, EDHREC, and Commander Spellbook.