Basically, it is just better in every way
Annie Flash, the Veteran Released in Outlaws of Thunder Junction , Annie Flash, the Veteran is a tough commander to play against, as it provides reanimation at instant speed, but more importantly, card advantage whenever it becomes tapped
Just like Jhoira earlier, I like him casting fat stuff for five mana, like Insurrection, Eldrazi Titans like Ulamog, Archangel's Light, Plague Wind, Searing Wind, the Ultimatum Cycle like Genesis Ultimatum, Conflux, Apex Devastator, Progenitus, Avacyn, Angel of Hope, the Ancient Dragon cycle, and loads more
Creatures dying will generate energy, but even a few cheap lands like Evolving Wilds and Terramorphic Expanse pull their weight when you sacrifice them.
Remember, this determines a lot about what the final creature is including power and toughness, the name, and the creature type
That said, there are plenty of Cube decks that end up playing a lot of basic Forests