Legendary creatures come in all colors and mana costs and can be found in not just Commander but also formats like Modern, Legacy, Pioneer, and even Standard and booster draft Limited
Three years ago, I wrote an article called Lets Talk About Lands where I shared my thoughts on lands in Commander
Yes, the statline is smaller, it doesn't fly, and we're not really getting any discount on its cost, but all of this is balanced by the sheer fact that we're never down on cards with this one
Yet for all the reasons Titans of Eden failed (technically it was cancelled)not laying enough groundwork, too few reward tiers, not having generic anime artyou cant say it didnt have the goods
Even outside of those, its great in any black typal deck that runs sacrifice outlets
Another awesome card for radiation decks, the Scorchbeast gets the nod for first place since you can take advantage of the rad counter mill during the next players precombat main phase, hopefully generating at least one 2/2 Zombie Mutant token