Killing it will give you 6540 XP.
Respawns on average in 15.05 minutes.
You see an old ent. It has seen many years passing by and survived a lot of storms. You can see that it is very old because it has already lost all of its leaves and most of its bark is broken...
Drops between 1 and 2.
Drops between 1 and 3.
Drops between 3 and 5.