Erestor and silver harp

[RebelX 10]

Can I save a card from being discarded at the end of the round? It is this not possible as the end of the round implies that there is not an action window left.

 

[Wandalf the Gizzard 370]

You don’t need to worry about having an action window. Since Silver Harp is a response, not an action, you can trigger it, interrupting the “end of the round” whenever it’s condition (discarding a card) is met.