binder card sleeves Premium 9-Pocket Zipper (360 Cards) Perfect For Pokemon 20 Pack 160 Pockets 2.5x3.5

Loose packs (even sealed) depend more on trust

This one is not a slam dunk like the next card on this list (and almost every one thereafter), but I do think that a deck that wants to make an Army might want it, especially out of the side

On top of all this, the deck is also loaded with Proliferate effects, so Energy Chambers counter distribution is invaluable

Before taking mulligans, shuffle all but one of your hands into your library

Nethroi, Apex of Death A second tier mutate commander, Nethroi, Apex of Death gives access to white, which allows in fellow beast Necropanther and a host of Abzan cards providing removal and drain and gain strategies