Trap Runner
Creature — Human Soldier
: Target unblocked attacking creature becomes blocked. Activate only during combat after blockers are declared. (This ability works on creatures that can't be blocked.)
- CMC
- 4
- Mana cost
- Color identity
- W
- Rarity
- uncommon
- Set
- Mercadian Masques
- Price
- $0.21
- EDHREC rank
- #26349
Trap Runner locks down any attacking creature mid-combat for a single tap and two mana, making it a repeatable political weapon that punishes every opponent who swings without checking your open mana first. The cost is real — you need to keep a creature untapped and two mana available every turn — but in a deck built around that constraint, the effect is genuinely oppressive.
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 |
Trap Runner is a Commander card through and through — its political leverage only compounds when three opponents are calculating whether their swing is worth your two open mana. In a four-player game, the threat of activation does more work than the activation itself, which is exactly the kind of soft lock Commander rewards. Legacy and Vintage are legal homes on paper, but one-on-one formats strip away the political deterrence and leave you with a slow, conditional blocker that no competitive deck wants. Oathbreaker shares Commander's multiplayer texture, so the same threat-based value applies there at a smaller table.
Key Combos
Combo lines featuring this card
Price Context
Current price
$0.21 bulk tier
At $0.21, Trap Runner is deep bulk — the kind of card you pull from a dollar box without thinking twice. It holds no financial upside, but it also costs nothing to include, which makes the decision entirely a gameplay question rather than a budget one.
Explore
Sources
Mentioned
Updated . Data from Scryfall, EDHREC, and Commander Spellbook.