I highly recommend removing Ash Barrens from this Final Fantasy deck because there is another land card that could change the entire flow of your game
On the other hand, Ash may not be so effective against Kashtira although it is usually included in these deck to protect the deck from the Book of Eclipse as its effect involves drawing a card
Not only does Green give you access to all the Enchantress goodies like Enchantress's Presence to bolster your Aura theme, there are also some cards that bridge the gap between Auras and Tokens like Pollenbright Wings and Dreampod Druid as Aura-based ways to fill your battlefield with creatures
If the player uses Max Elixir, the number of Dark energies in play can be as high as 8-9, allowing the player to deal 180 damage on the very first turn, which is borderline broken.
You can only use 1 "Endymion, the Crescent Magistus" effect per turn, and only once that turn
R Rare Rescue Rabbit X EARTH Level 4 [ BeastEffect ] ATK 300 DEF 100 Cannot be Special Summoned from the Deck