Fault Line
Instant
Fault Line deals X damage to each creature without flying and each player.
- CMC
- 2
- Mana cost
- Color identity
- R
- Rarity
- rare
- Set
- Urza's Saga
- Price
- $3.77
- EDHREC rank
- #15341
Fault Line deals X damage to each creature and each player — a board wipe that doubles as a life-loss trigger engine, all at instant speed. Auntie Blyte, Bad Influence turns every point of self-damage into a +1/+1 counter and a damage ping, making Fault Line's collateral hit to you a feature rather than a cost.
Best Commanders
Commanders with the highest synergy
Auntie Blyte, Bad Influence
Auntie Blyte, Bad Influence wants to take damage in chunks, and Fault Line delivers on both halves — clearing the board and simultaneously fueling her ability with the X damage you absorb, which then fires off additional pings to close games faster.
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 Fault Line earns its slot: instant-speed X damage to all creatures and all players is a premium effect in a format where sorcery-speed sweepers are the norm, and the self-damage clause synergizes with a growing list of commanders that reward life loss. In Legacy and Vintage it's technically legal but irrelevant — more efficient sweepers and the lack of a meaningful self-damage payoff push it out of any serious consideration. Fault Line is, in practice, a Commander-only card.
Key Combos
Combo lines featuring this card
Price Context
Current price
$3.77 cheap tier
At $3.77, Fault Line sits in the affordable range for a niche instant-speed sweeper with a built-in damage trigger. The price is stable — demand is narrow but consistent, driven almost entirely by Auntie Blyte, Bad Influence lists.
Explore
Sources
Mentioned
Updated . Data from Scryfall, EDHREC, and Commander Spellbook.