If you dont mill them in one go, two activations should be more than enough
Cards that appear with multiple treatments have each of those treatments appearing proportionally less often to the number of treatments
With Standard rotation coming very soon and the next announcement scheduled for November, Final Fantasy cards are generally positioned as they were planned by WoTC, much to my contentment

Like a Silverquill student doing debate prep, let's go over the hottest highlights of the new cards: Scriv, the Obligator is the new backup commander that achieves the old Silverquill Politics theme by way of creating a Contract, an aura token that punishes your opponents for attacking you but buffs the enchanted creature when they attack other opponents Eiganjo Dynastorian is this deck's entry to a new cycle of creatures with prepare-able spells that reference well-known and powerful spells from Magic's history in this case that spell is Replenish, in open defiance of the Reserved List, prepared by attacking with two or more creatures Intermediate Chirography, a new Class enchantment (another new cycle for each precon) that cares about life loss and modified creatures Forum Filibuster, a Dreadhorde Invasion-style enchantment that gives you an Inkling token every turn which additionally receives an Aura or Equipment attached to it from your graveyard

Grixis Control | Best Final Fantasy Draft Decks Grixis Control is my favorite deck to draft right now
Will-o'-the-Wisp is a good example of this, as is the original Mana Vault