Swingy ability, blah blah blah... Check out this dude's stats! Two resources for two attack is good in lore. You only get that kind of efficiency with Quickbeam, who everyone knows is OP and is an out-of-place 1x in almost all my decks... And Wandering Ent, who enters exhausted. So if you're looking to add some offense to your green deck, or already have your red resources tied up, this is a good candidate.
The ability's pretty good too, but you won't be able to trigger it reliably. A lot of quests have 3x of certain locations, though, so if you leave him out for awhile there's a decent chance of it lining up eventually. Could be extremely good in certain circumstances.