Because Mirrormere Guardian and Enraged Huorn both tempt and have 4 power, Ents Fury plays well in green decks that prioritize those cards, and I think the best green decks prioritize all of those, as well as Generous Ent, Wose Pathfinder, and Many Partings
The cherry on top is that Warchief is legal in almost all the non-Standard formats
Its a very juiced-up Millikin, and decks interested in self-milling will play this card for the mill and for the eventual god creature
The deck relies on support cards that help draw cards and gain life for your Book, such as Revitalize, Search for Glory, and Potion of Healing
In this instance youre just resetting in terms of time and mana spent
Ragavan, Nimble Pilferer Red Card Draw Commander This dude gets a category all to himself