Fury of the Horde sees competitive metagame play in 1 format(s): Commander.
If multiple creatures enter at the same time, evolve will trigger for each of them, and you'll perform each comparison separately
They have strong sizes to casting cost, a strong ability when they are on the battlefield, and when they die they turn into their Temple, which taps for their mana and then heads back with a tap at sorcery speed but with a harder to do activation
Cards like Blind Obedience, Authority of the Consuls and Ghostly Prison
The haunting artwork perfectly reflects Gengars mischievous nature, while Mortys association as a Ghost-type Gym Leader adds even more character appeal
Between the counter distribution on ETB and the general benefits of being in green, we should have no trouble maintaining the largest creature