Their Number Is Legion
Sorcery
Create X tapped 2/2 black Necron Warrior artifact creature tokens, then you gain life equal to the number of artifacts you control. Exile Their Number Is Legion.
You may cast this card from your graveyard.
- CMC
- 4
- Mana cost
- Color identity
- B
- Rarity
- rare
- Set
- Warhammer 40,000 Commander
- Price
- $1.05
- EDHREC rank
- #8663
Their Number Is Legion puts a 2/2 Necron Warrior token into play at end of every turn a player lost life — that's a token per player per round in a typical four-player game, all for three mana. Imotekh the Stormlord turns those tokens into a recursive army, and the card earns its slot on raw production volume alone.
Best Commanders
Commanders with the highest synergy

Imotekh the Stormlord
Imotekh the Stormlord's triggered abilities care about Necron Warrior tokens specifically, so Their Number Is Legion is effectively a core piece of the engine — it generates the exact token type Imotekh needs on every opponent's turn, not just yours.

Trazyn the Infinite
Trazyn the Infinite's ability to copy permanents means a second Their Number Is Legion doubles the passive token generation, and the card's low cost makes it an easy include in a deck that wants board presence without overinvesting mana.
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 |
Their Number Is Legion lives almost entirely in Commander, where four players guarantees constant triggers and the game goes long enough to cash in on the token flood. In Legacy and Vintage it's technically legal but competes with formats that end before the engine matters, so it sees no meaningful play there. Oathbreaker can support it in token-based builds, but the smaller life totals and faster games reduce how many triggers you'll actually see. If you're not playing Commander, this card doesn't have a home.
Key Combos
Combo lines featuring this card
Price Context
Current price
$1.05 cheap tier
At $1.05, Their Number Is Legion is a budget staple — you're getting a reliable, repeatable token engine for the cost of a sleeve. Demand is locked almost entirely to Necron-themed Commander builds, so the price is stable rather than speculative.
Explore
Sources
Mentioned
Updated . Data from Scryfall, EDHREC, and Commander Spellbook.