Today, in competitive game, I played a game at 6pm GMT+2 shaman against shaman europe servers.
The opponent summoned a trick totem that casts a spell with cost of 3 or less.
The spell cast was Evocation, it filled his hand with up to 10 spells, the spells were kept at the end of turn, even though they are supposed to disappear if they are not used. Because the totem mechanic is end of turn, and the evocation mechanic is end of turn and since the opponent had already ended his turn to trigger the first end of turn mechanic, then the second end of turn mechanic did not trigger. I think it’s a bug that needs to be fixed.