Deathmark’s card text says that the enemy minion is destroyed “when it is attacked.” I played it on a minion and hit it with my general and the minion counterattacked before it was destroyed. This is not how I would expect it to work. (By contrast, mirages from superior mirage, which “disappear when attacked,” do not get to counterattack.)
Is this the way the card always works, or was my interaction bugged? (I was wielding spectral blade and playing in frostfire mode, which might have caused this.)