The success and popularity of Fires of Yavimaya is due to a confluence of several factors
Its small size is also a curse because it needs to take only 1 damage to actually start building up
More than just allowing lands to tap for any color, Wrenn and Realmbreaker also effectively protects themselves, which is always a potent ability
Liesa, Shroud of Dusk Group slug commanders like Liesa, Shroud of Dusk can be a lot of fun to play against if youre tired of slow games, since their life loss ability adds a ticking clock element to the game
A random eBay seller is presumably more difficult to track down
3 Bramble Familiar / Fetch Quest Speaking of ramping up in mana, the adventure card Bramble Familiar and Fetch Quest helps set up some graveyard shenanigans late in the game while helping you get there with some much-needed mana abilities