So, while ZACAMA! is my absolute favorite fatty, I've got more, and most of them are centered on green or its allies (red and blue).
Eternal Dragon
Mirrorshell Crab
Bramble Wurm
Omnath, Locus of Rage
Colossal Skyturtle
Zacama, Primal Calamity
Maelstrom Wanderer
Myr Battlesphere