But once the Ents came to a decision, they were not stoppable and fought and worked with tireless energy fueled by righteous anger against evil.
Don't forget, the language of the Ents took a long time to say anything.
Taurelilómëa-tumbalemorna Tumbaletaurëa Lómëanor means "there is a black shadow in the deep dales of the forest."
And, don't forget, a punch from an Ent-fist crumples up iron like thin tin.