I think the most notable example of this is the four Sea Monster creature types that were first referenced on Quest for Ulas Temple Kraken, Leviathan, Octopus, and Serpent
Here's everything revealed on day one, including the new cards and mechanics coming in Tyranid Swarm when it launches on October 7
Then check out this Zedruu the Greathearted deck that came in at $34.29
Peak Card Value: $271.50 Average Card Value: $4.68 High-Value Cards: 16 cards above average Strong investment potential with premium cards Set Rarity: Large comprehensive set Popular Cards: Focus on holo rare and special cards Best Investment: First edition and PSA graded cards Monitor price trends weekly for best buying opportunities Condition Matters: Mint condition increases value by 300-500% Storage: Keep cards in protective sleeves and toploaders Authentication: PSA/BGS grading for valuable cards Complete set collection often worth more than individual cards Everything you need to know about Battle Styles card values, pricing, and collecting
With both Kaladesh and Ixalan in Standard, it would be the right time for it, if there ever was one, but it hasnt happened yet, so I guess the theme doesnt have much to offer for cnostructed, unless they really want to push it, which I doubt theyll do