For each player, they can put their abilities on the stack in the order of their choice
Even decks that dont have a lot of blue cards can run Snap due to its versatility, cheap mana cost, and limitless potential
Whenever you cast a spell, if the amount of mana spent to cast that spell is greater than Liberator's power, put a +1/+1 counter on Liberator
Present Arms swaps your library with another deck you own from outside the game and use that one instead ("library" and "deck" both refer to the same thing, but the former is used to refer to it in-game, whereas the latter is used to refer to it outside of the game)
Cryptbreaker Im not sure if Zombies will be a strong enough tribe to compete in Standard, but if they are, then Cryptbreaker will be a big reason why