Magtheridon destroys all minions after Maiev makes him Dormant for two turns

[Jetz72]

https://us.forums.blizzard.com/en/hearthstone/t/magtheridon-will-clear-board-when-reawoken-by-maiev-shadowsong/28656

Magtheridon will clear board when reawoken by Maiev Shadowsong According to the cardtext of Magtheridon,

Dormant . Battlecry: Summon three 1/3 enemy Warders. When they die, destroy all minions and awaken.

Magtheridon should only destroy all minions if awoken by the death of the 3 enemy wardens, not when reawoken by Maiev Shadowsong’s battlecry. If this was the intended interaction, the cardtext should be changed

Reported by several others as well. That one pretty much sums it up though. Text implies the destruction is a consequence of the Warders dying, not the awakening like other Dormant minions.

[Jetz72]

https://twitter.com/Celestalon/status/1248321193767124992

Magtheridon destroys all minions when awaken after Maievs battlecry. Is that intended?

No, to be fixed in the next major patch.