Mystery Garden, a new staple for Gardevoir decks, and Forest of Vitality, a reinvention of the feared Forest of Giant Plants
Better ways to proliferate without paying so much mana include Yawgmoth, Thran Physician or casting a low-cost sorcery like Thirsting Roots
They are always in English but can be opened in Collector Boosters of any language
As far as flavor goes, the Glittering Caves of Aglaron is well Gemstone Caverns
Potential Infinites There are a few infinite loops in here to generate all the landfall we could ever need - the Temur Charger can be turned face up at the cost of revealing a green card from hand, so anything that costs 1 to sacrifice it can be looped by paying the 1 and sacrificing it, returning it as a land, tap for 1 green, morph for 0 mana, then paying the 1 and sacrificing it, ad infinitum
31, 2026 A mono-blue control deck