The decklists were revealed earlier on Destructoid, but we've also provided them here, just in case you're the type who likes reading things twice
Your win condition will inform the rest of your deck-building choices
In the meantime you can read my full Q&A with Wizards of the Coast down below, or if want to see some more fancy showcase versions of cards from Magics most recent set, you can watch me unbox the Phyrexia: All Will Be One Compleat Edition bundle
As we've seen, black and white have plenty of options to remove any type of permanent, but if you lean strongly into blue and enemy creatures give you a headache, you may be better served with either temporary removal (bouncing) or doing what blue does best: Use counterspells to handle cards before they become threats
#4 Sol Ring Turn 1 Sol Ring is one of the best starts in oldschool (or any format where it is legal), and the advantage of four mana available turn two should be self evident