How do you defeat the sword of knowledge?

Answer 1

First, cut off 1 tail and 2 replace it. Next, cut off 2 tails and a head grows in. Then, cut off 2 heads and then 2 more and then there are no heads but 2 tails. After that, cut off 1 tail and 2 replace it. Next, chop off 2 tails and a new head grows in. Then, cut off 1 tail and 2 replace it. After that, chop off 2 tails and a head grows. Finally, cut off your last 2 heads and you are left with nothing but a dead drogon.