I tried to show how i would approach Klaus first winter after a ruins rush! With mag(20%) and cane(25%), beginners will have no problem kiting him!
All of his attacks have a cool down if you make him consecutively use them, here are the kiting pattern. Glermz TV has a video showing it! During the beginning of his first and second phase, his attacks may not work like said since all cooldowns are ready. It will eventually follow this pattern.
(player movement are in brackets)
First phase: Swipe, (player attack 4 hits),swipe, (hit until he cast spells), spell, repeat
You can dodge the fire spell by running away and ice spell by running behind him. when you do run behind him, make sure to pass by the deer casting or else the deer may hit you. He will alternate between fire and ice spells.
Second Phase: Jump, swipe, (3 hits so he will jump instead of casting), Jump, (continue hitting until he casts spell), repeat
If you had any problem, leave in comment and I will try to get back.