How Many Scene Cards Are There
Throw in a handful of dual lands and some playable utility lands like Bojuka Bog and Geier Reach Sanitarium, and counting only rare lands and other lands worth over $1, and the average value of the land slot in Commander 2019 has roughly doubled since last year, with the Sultai Morph deck clearly leading the way thanks to the Battle for Zendikar dual lands and the Jeskai Flashback deck lagging behind with a surprisingly lackluster mana base (especially considering it's a three-color deck)
You won't be able to tap it again rather than pay one of the mana in Heirloom Epic's activation cost
It brings back See the Unwritten with its ETB trigger, then gives you Ferocious next turn for the double search
Inspiring Leader and Popular Entertainer are both great here, but Guild Artisan can also work depending on the angle you go with in deckbuilding
As mentioned, they're original decks with their own cards (and their own set code, FIC), with actually little overlap with the main Final Fantasy set