Agrus Kos, Spirit of Justice
Double strike, vigilance
Whenever Agrus Kos enters or attacks, choose up to one target creature. If it's suspected, exile it. Otherwise, suspect it. (A suspected creature has menace and can't block.)
Illustrated by Cosmin Podar
This printing
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If a suspected creature loses all abilities, it will lose menace and "This creature can't block", but it won't stop being suspected.
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.
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.
