I mean, that card is absurdly powerful on raw power level so I wouldn't be surprised if it raised a few eyebrows :) But certainly, for turn 2 GGGG you could do worse. Gaea's Cradle with some free/cheap dudes is the other thing I can think of. Mana elf and two lands plus Elvish Spirit Guide/Lotus Petal/equivalent would be a third one. It's also possible to accelerate colorless (with the usual stuff, Ancient Tombs, City of Traitors, whatever) and convert it into green (or make everything castable with colorless or whatever) with stuff like Gilded Lotus, Mycosynth Lattice or whatever.