Duress

[Rass]

if they  {Duress} My instant can I cast the instant after he targets.

[griffin131]

No. You can cast instants before Duress begins resolving, but once a spell starts to resolve you can't do anything the card doesn't say.

[Ekann1]

No. Once the spell starts resolving, it's too late. You gotta cast it in response to the duress before you reveal and he chooses for you to discard.

[Ekann1]

No. You can cast instants before Duress begins resolving, but once a spell starts to resolve you can't do anything the card doesn't say.

Too slow

[Rass]

Thanks.