Brainsurge
Instant
Draw four cards, then put two cards from your hand on top of your library in any order.
- CMC
- 3
- Mana cost
- Color identity
- U
- Rarity
- uncommon
- Set
- Modern Horizons 3
- Price
- $0.36
- EDHREC rank
- #1393
Brainsurge lets each player draw four cards then put four back — at four mana, that's a table-wide refuel that still leaves you in control of your own top deck. In The Watcher in the Water builds, the draw trigger alone can tentacle the board; the symmetry cost is real, but decks built to exploit the draw more than opponents will consistently come out ahead.
Best Commanders
Commanders with the highest synergy
The Watcher in the Water
The Watcher in the Water triggers off each draw, so Brainsurge immediately fires four separate triggers for you — and if opponents are also drawing four, you're looking at a table-wide tentacle explosion off a single spell.
Alandra, Sky Dreamer
Alandra, Sky Dreamer cares about drawing your second card each turn, and Brainsurge hands you four in one shot, generating multiple Drake tokens while the reorder effect sets up your next draw step.
Kenessos, Priest of Thassa
Kenessos, Priest of Thassa cheats Sea Creatures off the top, and Brainsurge's four-card put-back lets you stack exactly what you want to free-cast on your next attack step.
Marvo, Deep Operative
Marvo, Deep Operative generates mana and copies off drawing cards, so the four draws from Brainsurge translate directly into resources — and the top-deck manipulation lines up what Marvo hits next.
Yennett, Cryptic Sovereign
Yennett, Cryptic Sovereign needs an odd-CMC card on top at the start of combat, and Brainsurge's reorder effect makes that trivial — you dig four deep and place your best odd drop exactly where you need it.
Format Analysis
Where it lives, where it can’t
| Format | Verdict |
|---|---|
| commander | legal |
| legacy | legal |
| modern | legal |
| pioneer | not legal |
| standard | not legal |
| vintage | legal |
| pauper | not legal |
| oathbreaker | legal |
Brainsurge is legal in Commander, Legacy, Modern, Vintage, and Oathbreaker, but its home is Commander by a wide margin. In 60-card formats the symmetry is punishing — giving three opponents four cards is catastrophic in Legacy or Modern, where opponents are executing linear game plans faster than you can exploit the draw. In Commander, the political and mechanical calculus shifts: decks that trigger off drawing cards (The Watcher in the Water, Alandra, Sky Dreamer) extract disproportionate value from the four draws, and the top-deck control keeps you ahead of the table refuel. Oathbreaker is a reasonable secondary home if your planeswalker has draw synergies, but the card is built for multiplayer.
Key Combos
Combo lines featuring this card
Price Context
Current price
$0.36 bulk tier
At $0.36, Brainsurge is firmly bulk — easy to pick up as a four-of or toss into any blue Commander deck that can use it. Bulk rares with narrow commander niches tend to stay cheap, so there's no urgency to buy multiples for speculation, but at this price the question is just whether it fits your deck.
Explore
Sources
Updated . Data from Scryfall, EDHREC, and Commander Spellbook.