It's useful, though lost some relevance since Leaf was added
, , Sacrifice this land: Search your library for a basic Mountain, Forest, or Plains card, put it onto the battlefield tapped, then shuffle
It's very strong in multiplayer since you are more likely to be running at least one opponent with Green ramp and two-drop ramp spells like Rampant Growth and Farseek are getting added to ramp brews in Commander over conventional ramp like Cultivate and Kodama's Reach, so on the turn you have three mana, one player casting a two mana ramp spell with an extra land is pretty likely, and if not, then someone probably cast Explore spells or dropped an Exploration and an extra land or two
Mulch Mulch showed up last in the first Innistrad set, where it helped to define graveyard-based decks of that era
2017-08-25 While a permanent is phased out, it's treated as though it doesn't exist
B Cycles get grouped at the same number