This is a bug report.

I went against an opponent today who timed out during declare attackers phase and I didn't know why, expect I had a hunch he knew why I attacked - I was pocketing, very obviously, a kill card. We were at a point where whoever attacked first would lose due to blocker status and so on. So when I attacked, it should have been clear I had drawn into an answer.

Anyway, they ran their counter down after assigning attackers. This was the first and only time they had done that this match.

It in turn wouldn't let me use my kill card. It didnt reduce the mana cost, and it didn't even offer me the choice to cast (admittedly this may have been because I didn't have the mana without the reduction being applied). Attached is the best image I can provide of the circumstance. The creature that went through was a Malamet Warrior equipped with a Hunter's Blowgun. He had no vigilance to remain untapped.

This is about the third interaction glitch I have run into with turn timers being run to max, but the only one I've posted about because I had no images at all of the other two, which involved crewing vehicles during the declare attacker phase.

Any insight would be appreciated. At this point I believe my best option personally is to not spend on virtual any longer and walk away from it and move back to proxying commander.