Behind the Mask 
Instant
Oracle text (EN)
Instant
As an additional cost to cast this spell, you may collect evidence 6. (Exile cards with total mana value 6 or greater from your graveyard.) Until end of turn, target artifact or creature becomes an artifact creature with base power and toughness 4/3. If evidence was collected, it has base power and toughness 1/1 until end of turn instead.
Printing details
- Set
- MKM · 39
- Rarity
- Common
- Language
- EN
- Artist
- Caio Monteiro
- Released
- 2024-02-09
- Prices
- €0.09 · $0.20
Price history
The trend shows with at least 7 days of history.
- Cardmarket, trend
- CardTrader, Near Mint minimum (EN)
The history starts on October 28, 2026 and grows every day.
Show the data
| Date | Cardmarket, trend | CardTrader, Near Mint minimum (EN) |
|---|---|---|
| October 29, 2026 | €0.09 | €0.11 |
| October 28, 2026 | €0.12 | €0.11 |
Prices
| Source | Non-foil | Foil |
|---|---|---|
| Cardmarket | low €0.02 trend €0.09 30-day avg €0.11 | low – trend €0.12 30-day avg €0.09 |
| CardTrader (EN) | NM from €0.11 with Zero from €0.11 | NM from €0.11 with Zero from €0.11 |
| CardTrader (any language) | NM from €0.11 | NM from €0.11 |
Cardmarket updated Nov 2, 2026 · CardTrader updated Nov 2, 2026
Buy and look up
Legality
- standard Legal
- pioneer Legal
- modern Legal
- legacy Legal
- vintage Legal
- commander Legal
- pauper Legal
- alchemy Not legal
- brawl Legal
- competitivebrawl Legal
- duel Legal
- future Legal
- gladiator Legal
- historic Legal
- oathbreaker Legal
- oldschool Not legal
- paupercommander Legal
- penny Legal
- predh Not legal
- premodern Not legal
- standardbrawl Legal
- timeless Legal
- tlr Legal
Rulings
-
If Behind the Mask causes a Vehicle to become an artifact creature, it doesn't count as "crewing" that Vehicle for any ability that would trigger off of a Vehicle becoming crewed.
-
Once you've announced that you're casting a spell, players can't take actions until you've finished doing so. Notably, opponents can't try to remove cards from your graveyard to stop you from collecting evidence.
-
Behind the Mask will overwrite any previous effects that set a creature or Vehicle's power and toughness to specific numbers. Effects that otherwise modify its power and toughness will still apply no matter when they took effect. The same is true for +1/+1 counters.
-
If you can't exile enough cards to meet or exceed the required mana value, you can't choose to collect evidence at all.