The 12-mana Emrakul is 12/12 and you steal all dorks a foe controls - note there is no give them back here
So, how should you choose what to keep and what to pitch
And as a Quick Effect, you can detach one of its Xyz Materials to make yourself immune to your opponents effect damage this turn, AND boost Giant Soldier of Steel by +1000 DEF
If another effect modifies how much damage your source would deal, including preventing some of it, the player being dealt damage or the controller of the permanent being dealt damage chooses an order in which to apply those effects
5 The Ten Rings One of my favorite artifacts in the set,The Ten Rings isnt cheap, but it does give you a whole host of card draw
There are many mono-Black Commander options if you want to play Rats, but Marrow-Gnawer is by far the most powerful