No, delve only applies to generic mana in a delve cards cost
Lands are also in this category it's fine if this search turns lands up as well
New standard cards were also revealed, showcasing the deep integration of Final Fantasy lore into MTG mechanics: Choco, Seeker of Shangri-La (from Final Fantasy 9): A powerful Chocobo Commander card, surprising even Ichikawa, who noted its historical parallels with Magic: The Gatherings Birds of Paradise
Strong draft and sealed support with a variety of play patterns and strategic avenues in each color
Mass enchantment reanimation like Replenish, Open the Vault or Renewed Faith, cost-altering enchantments like Omniscience, Dream Halls or One with the Multiverse, and one-off freecasting effects like Academy Rector, Lost Auramancers, or Show and Tell each have their strengths wed like to play all of them