Any 1-mana elf becomes mana neutral with this in play since Marwyn taps for extra mana
Vampires I saved the best for last
I also like Lich-Knights Conquest as a second copy of Living Death, especially if youre running cards that make treasures, like the stellar Lotho, Corrupt Shirriff
On the flipside, you could build a Y'shtola deck that doesn't focus on this Creature package at all, and you can win the game through alternate conditions, whether that's by dealing enough damage with Y'shtola herself or casting cards like Sheoldred, the Apocalypse, Bloodchief Ascension, or a personal pet card, Approach of the Second Sun
Set Sail on the Dangerous Azurite Sea Disney Lorcana TCG: Azurite Sea continues the story of Illumineers who were last seen celebrating the defeat of Ursula in Disney Lorcana TCG: Shimmering Skies until they were interrupted by chunks of the Great Illuminary, the repository of all stories ever told, falling off and plummeting to the ground