how you beat the octocupus?

[Handel]

Thanks to the tip I read on this board beating the octopus is the easiest thing in the game (as well as another similar monster later in the game).
The problem with the octopus is not the monster itself but the increasing number of devilfish it spawns. So I hired 2 stacks of thorns; there are 3 kinds of thorns in the game and either 2 will do the job, althoguh if you can better to take royal thorns.
The task for the thorns is to spawn thorns from the dead devilfish AND to make hits too if there is nothing the spawn (you will be surprised how much damage can do 500 thorns).
Large number of thorn stacks prevents some of the devifish from spawning, can eliminate some of the devifish themselves AND stop the devilfish from attacking the main troops (they simply cannot get close to them).