Secret Lair is a series of limited-edition mini releases, usually containing a small number of cards with special art, and for Final Fantasy its no different
Doubling up on all spell-based triggers is already strong enough if all you ever consider is prowess, but you have to factor in magecraft abilities on cards like Archmage Emeritus, as well as pinger effects from Coruscation Mage and the like
You can give your opponent lands, or more importantly, negative permanents like Bronze Bombshell or Jinxed Idol
So make sure to pause a moment before each play and make sure you are getting the best value possible from each spell
As long as Mirri, Weatherlight Duelist is tapped, no more than one creature can attack you each combat
Chronicle of Victory is screaming to be included in elf decks with their great mana ramp, vampires with their combat advantages like deathouch and flying, as well as shapeshifters who can always benefit from typal effects