After looking at every legendary Dragon, I think its a small list
Ramp can appear in different shapes and forms: Land-Based Ramp (Cultivate, Rampant Growth) Mana Dorks (Llanowar Elves, Bugenhagen, Wise Elder) Mana Rocks (Mind Stone, Basalt Monolith) Treasure-Makers and other artifact token producers (Smothering Tithe, Sarinth Greatwurm) Extra land drops (Exploration, Exploration Broodship) Land Recursion (Crucible of Worlds, Aftermath Analyst) Rituals (Dark Ritual, Mana Geyser) Cost Reduction (Honest Rutstein, Stormcatch Mentor) Eldrazi Spawn & Scion producers (Eldrazi Skyspawner, Kozilek's Predator) Mana Doublers (Mirari's Wake, Groundchuck & Dirtbag) Temporary mana abilities (firebending) This ranking will cover many of these forms of ramp, but will leave some more specific ones like Treasure-makers to their own separate list
2 Lifegain Lifegain is a fantastic strategy in Golgari, especially with it being the primary focus of the color in the release of Strixhaven which gives Golari a ton of toys to boost up the strategy to its Selesnya counterpart
In The Lost Caverns of Ixalan , you'll face an adventure like never before, discovering long-lost ruins, ancient civilizations alive and well, and fan-favorite creatures running rampant
Genesis Ultimatum The Ultimatums were a very popular cycle, and Genesis Ultimatum was one of the more popular ones from the Ikoria half
First debuting in Urzas Saga , this two-mana Elf produces green mana equal to the number of Elves on the battlefield, and not just ones you control