I've searched through the forums to the best of my abilities and I can't find a ruling on this.

After someone plays Lesser of Many Evils to cancel my responses, can I use Seal of Cessation to cancel that, or is it too late.

Player A announces that he is playing the F on Lesser of many evils, and destroys the card.

Player B may respond with Seal of Cessation to negate the effects of Lesser of Many Evils. If they choose not to, from that point forward, no more Rs for the rest of the turn.

Thank you for the amazingly quick response.