Harnesser of Storms
Creature — Otter Wizard
Whenever you cast a noncreature or Otter spell, you may exile the top card of your library. Until end of turn, you may play that card. This ability triggers only once each turn.
- CMC
- 3
- Mana cost
- Color identity
- R
- Rarity
- uncommon
- Set
- Bloomburrow
- Price
- $0.12
- EDHREC rank
- #7807
Harnesser of Storms turns every instant and sorcery into a free spell — the second one each turn costs nothing, which is an absurd rate for any spellslinger deck. Alania, Divergent Storm is the natural home, but any blue-red shell that casts multiple spells per turn treats this as an engine piece, not a support card.
Best Commanders
Commanders with the highest synergy

Alania, Divergent Storm
Alania, Divergent Storm triggers off the second instant or sorcery each turn anyway, and Harnesser of Storms makes that second spell free — the two cards are practically designed for each other, turning Alania's counter-stacking into an even faster clock.

Bria, Riptide Rogue
Bria, Riptide Rogue cares about casting spells and going wide on instants and sorceries, and Harnesser of Storms reduces the tax on the second spell each turn, letting Bria's triggers chain more efficiently without draining your mana base.
Format Analysis
Where it lives, where it can’t
| Format | Verdict |
|---|---|
| commander | legal |
| legacy | legal |
| modern | legal |
| pioneer | legal |
| standard | legal |
| vintage | legal |
| pauper | not legal |
| oathbreaker | legal |
Harnesser of Storms is legal across every major constructed format but lives almost exclusively in Commander, where the longer game gives you repeated turns to cash in on the free-spell trigger. In Modern or Pioneer, a four-mana 3/3 that occasionally rebates a spell is too slow and too fragile — those formats punish do-nothing bodies at that cost. Commander is where it earns its slot: multiplayer games last long enough that you'll trigger it several times, and Izzet spellslinger commanders run enough cheap instants and sorceries to guarantee the second-spell condition almost every turn.
Key Combos
Combo lines featuring this card
Price Context
Current price
$0.12 bulk tier
At $0.12, Harnesser of Storms is deep bulk — you can pick up a playset for less than a single draft pack. That price is unlikely to move meaningfully unless a high-profile spellslinger commander pulls it into the spotlight, so buy it now if you need it and don't think twice about the cost.
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Sources
Updated . Data from Scryfall, EDHREC, and Commander Spellbook.