Becoming A Tree Isn't That Bad, Right

Barks that are impenetrable even by the sharpest sword of the chosen hero. Branches that are uncuttable by the earth-shattering technique practiced to it's perfection by the chosen hero. Leaves that are left unruffled by the bone melting flames of the vermilion bird tamed by the chosen hero. But wait... Why is the the esteemed exalted Hero trying to cut off an innocent tree...