Nemesis of Reason
Creature — Leviathan Horror
Whenever this creature attacks, defending player mills ten cards.
- CMC
- 5
- Mana cost
- Color identity
- BU
- Rarity
- rare
- Set
- Commander Legends: Battle for Baldur's Gate
- Price
- $3.21
- EDHREC rank
- #4382
Nemesis of Reason mills ten cards on every attack — before blockers, before damage — which means even a chump-blocked swing still gutted someone's library. At five mana for a 3/7, the body is defensive enough to stick, and Captain N'ghathrod turns every milled creature into a free cast, making each swing a two-for-one threat.
Best Commanders
Commanders with the highest synergy
Captain N'ghathrod
Captain N'ghathrod's triggered ability lets you cast creatures milled from opponents' graveyards, so Nemesis of Reason doesn't just threaten a mill win — it stocks the graveyard with fuel for free casts every combat step.
Umbris, Fear Manifest
Umbris, Fear Manifest grows by one for each card exiled from opponents' libraries or graveyards, so Nemesis of Reason's ten-card mill trigger directly translates into +10/+10 on your commander the turn it attacks.
Phenax, God of Deception
Phenax, God of Deception turns toughness into a tap-to-mill ability, and Nemesis of Reason's 7 toughness means it contributes seven cards on top of the ten it already mills on attack — seventeen cards in a single turn cycle.
Lord Xander, the Collector
Lord Xander, the Collector already punishes opponents with discard and sacrifice on entry and attack, so Nemesis of Reason layers a third axis of hand-and-library attrition into the same shell.
Runo Stromkirk
Runo Stromkirk wants a critical mass of large sea creatures in the graveyard to flip, and Nemesis of Reason mills libraries fast enough to set up that condition while also qualifying as a Kraken-type payoff once Runo has transformed.
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 |
Commander is the format where Nemesis of Reason earns its keep — 100-card decks die to mill slower than 60-card formats, but a 3/7 that mills ten on every attack compounds fast enough to end games when paired with the right commander or a populated board. In Legacy and Vintage, it's technically legal but entirely unplayed: five mana is a prohibitive rate when those formats close games on turns one through three, and the mill payoff requires attacks that never come. Modern has moved past this power tier entirely. Nemesis of Reason is a Commander card through and through, and its 84% inclusion rate in Captain N'ghathrod decks confirms that the niche it occupies is real and well-defined.
Key Combos
Combo lines featuring this card
Price Context
Current price
$3.21 cheap tier
At $3.21, Nemesis of Reason sits in the sweet spot where an 84% inclusion rate in a popular commander archetype justifies the price without making it a budget concern. It's cheap enough to slot in without deliberation and unlikely to drop further given its narrow but loyal home in mill-focused blue-black builds.
Explore
Sources
Mentioned
- Captain N'ghathrod
- Umbris, Fear Manifest
- Phenax, God of Deception
- Lord Xander, the Collector
- Runo Stromkirk
Updated . Data from Scryfall, EDHREC, and Commander Spellbook.