Armarouge has the powerful ability to move Basic Fire energy cards from the board to any Pokmon on its side of the board, which makes use of cards like Ethan's Ho-oh ex that energy accelerates to itself
Wild Pairings and Bearings And there you have it
Emrakul, the Aeons Torn is a 15-mana flying 15/15 that cant be countered, gives you an extra turn after you cast it, has protection from cards that have colours and has Annihilator 6
As far as comparing the two go, they have their own charms
This, in turn, can allow the player to quickly turn the tides of battle, as they can end up removing vital item cards that the opponent may need to execute their strategies, leaving them struggling if they have no way to recover said discarded items in time
Magic has a second lesson for us here: Pinch points