Tekton
I decided to make a new suggestion for this boss as coding for the last few CoX updates felt being rushed and made nothing like I suggested before. I'll start of with how I think Tekton should be changed and I have added a little video on the bottom of this suggestion how the fight overview looks.
Mechanic 1:
Basically you walk inside Tekton's chamber it's still smithing his sword without any lava sparks. Tekton needs to be "woken up". To wake him up a player needs to walk roughly into this zone:
Mechanic 2:
Tekton is going to walk to you. When he reaches you he stops. Tekton will stay in this spot the entire time unless you walk too far away from him. Tekton can only hit you if you are standing on the tile next to him. In the picture you can see the blue line indicating the area that Tekton in this position is able to hit you. The yellow line indicates the safe spot from his attacks. Players can use the "yellow line area" to dodge his attacks however if they stay too long in the yellow area, Tekton will start to walk back to his anvil.
Mechanic 3:
Tekton is only able to do an attack locked to 1 of 4 sides. Meaning whenever he started to do his attack on one side, players can hop to another side to dodge his attack and keep going with the fight. If you keep standing on the spot you were standing, he hits you. Kind of like the mechanic Zulrah's melee attack has. Four sides of his attacks roughly looks like this:
Mechanic 4:
Lava from Tekton is dodgeable by moving 2 tiles every time lava is being "shot".
Please see check out the fight overview video at 1:20 min that will show you what I mean.
Doing all of the mechanics right, Tekton should be a 0 damage room in the end.