Da Undatakah revive Malorne instead of himself after gaining Malorne’s Deathrattle.
By the way, seems like Malorne’s Deathrattle has changed from its old version, which is “shuffle this minion into your deck”.
When I used Da Undatakah to gain the New version Malorne’s Deathrattle and when it’s time for Da Undatakah to revive, it revives Malorne, instead of Da Undatakah itself. It should be a bug, since Malorne’s Deathrattle says just “revive” instead of “revive Malorne”.
What I plan initially was to revive Da Undatakah using this method, which is interesting, but it failed. I hope later change can make this possible.