Use Fetch lands like Flooded Strand to shuffle your deck, getting rid of whatever two cards you put back with Brainstorm
Being able to split them up is lovely too, you can dig for lands early and then cash in lands with it late
We could use some of my other suggested upgrades as examples: Aether Refinery - you could get 8x the energy, meaning you can get 24 energy just off the Refineries
Who wants to buy a bunch of cards that might or might not be good after a change in the format (although if this does happen you can totally trade them to someone else on Cardsphere!) and not end up with something good
Sephiroth, Fabled SOLDIER // Sephiroth, One-Winged Angel Rarity: Mythic Rare TYPE: Legendary Creature // Legendary Creature SUBTYPE: Human Avatar Soldier // Angel Nightmare Avatar CMC: 3 Mana cost: USD: $31.62 EUR: 25.69 TIX: 1.02 EDHREC RANK: 1373 (3/3) Whenever Sephiroth enters or attacks, you may sacrifice another creature
It is also viable to create a shared planar deck that all players draw from instead