The guardian druid talent tree has 1.5 million possible max-level combinations. I created a talent tree manager to organize all of them and more! : r/wow
Did the Mage Tower Guardian Druid Challenge last night about 20 times and managed to get the first boss down to 17% which made me feel really good about myself lol but
UoG: Mists of Pandaria Beta Druid talent analysing for feral and guardian specs PVE/PVP - YouTube