Well you did say "damage" so he replied about edo tobirama damage output. His price is a lot because he was first introduced in our server, so wait until he gets cheaper when he comes back. Great Tree is quite hard to give a estimate on price because of how the event gives you coins to redeem frags. Zathroth pretty much gave an explanation on how you can guess the price https://forum-narutoen.oasgames.com/page/show-post-29639-1.html

If you are too lazy to figure out the price range, then you can guess about 20k is needed for him at the moment.