Knockout Blow
Instant
This spell costs 
less to cast if it targets a red creature.
Knockout Blow deals 4 damage to target attacking or blocking creature and you gain 2 life.
- CMC
- 3
- Mana cost
- Color identity
- W
- Rarity
- uncommon
- Set
- Streets of New Capenna
- Price
- $0.16
- EDHREC rank
- #26353
Knockout Blow destroys a creature and gains you 4 life on a single card — the effect is real, the rate isn't. Three mana at sorcery speed for conditional removal that requires a white source puts it firmly below the threshold for competitive play.
Format Analysis
Where it lives, where it can’t
| Format | Verdict |
|---|---|
| commander | legal |
| legacy | legal |
| modern | legal |
| pioneer | legal |
| standard | not legal |
| vintage | legal |
| pauper | not legal |
| oathbreaker | legal |
Knockout Blow is legal across Commander, Legacy, Modern, Pioneer, Vintage, and Oathbreaker, but legal doesn't mean playable. In Commander it competes against Swords to Plowshares, Path to Exile, and Generous Gift — all of which cost one mana or answer more card types. In Modern and Legacy the bar is even higher; three-mana sorcery removal doesn't make the cut when Fatal Push and Prismatic Ending exist. Oathbreaker's lower power floor makes it slightly more tolerable, but the life gain isn't a meaningful payoff in any of these formats.
Key Combos
Combo lines featuring this card
Price Context
Current price
$0.16 bulk tier
At $0.16, Knockout Blow is deep bulk — the kind of card that fills a draft chaff box. The price reflects the power level accurately and isn't going anywhere.
Explore
Sources
Mentioned
Updated . Data from Scryfall, EDHREC, and Commander Spellbook.