Putting aside the extra turn negation, this is Mangara, the Diplomat PLUS a draw whenever an opponent draws their second card each turn
Dont be afraid, just turn him into an indestructible creature for no loyalty loss, sweep the board, and then why not swing while youre at it
You can take down a lot of dorks as well as transferring player damage to a Planeswalker, giving Arlinn a wide range of removal options
Even if you don't want to bounce it, slotting it in a removal slot might be something you can do if you want more effects out of your spells, and it's a permanent if your deck cares about that
In these decks, youll often find spells capable of leeching away your opponents health while relying on zombies, demons, and other infernal creatures to finish the job