First printed in Murders at Karlov Manor (2024)
Instant
Counter target spell unless its controller pays 
.
Suspect up to one target creature. (A suspected creature has menace and can't block.)
"Merle had the motive, but Blovinac was the one caught with the murder weapon. And who was the seven-foot-tall hooded figure? This case is a mess!"
- Illustrated by
- Betty Jiang
Legality
- Legal in
- Standard, Pioneer, Modern, Legacy, Vintage, Pauper, Future Standard, Historic, Timeless, Gladiator, Commander, Duel Commander, Pauper Commander, Tiny Leaders, Oathbreaker, Brawl, Standard Brawl, Competitive Brawl
- Not legal in
- Alchemy, Penny Dreadful, Premodern, Old School 93/94, PreDH
Rulings (6)
- You can't cast Reasonable Doubt just to suspect a creature. There has to be a spell on the stack that's a legal target for Reasonable Doubt.
- There's no limit to the number of creatures that can be suspected simultaneously. Suspecting a new creature doesn't cause other creatures to stop being suspected.
- If a suspected creature loses all abilities, it will lose menace and "This creature can't block", but it won't stop being suspected.
- Being suspected isn't a copiable value. If a permanent becomes a copy of a suspected creature, it won't be suspected.
- When an effect suspects a creature, it becomes suspected. It gains menace and "This creature can't block" for as long as it's suspected. It stays suspected until it leaves the battlefield or another effect causes it to no longer be suspected.
- If a creature is already suspected, suspecting it again won't have any effect.
Prices
Paper price: €0.10 / $0.19 , the cheapest non-foil print (Cardmarket and TCGplayer through MTGJSON, 2 Nov 2026).
MTGO price: 0.002 TIX, the cheapest non-foil print (average sell price on GoatBots, 2 Nov 2026).