i prefer an alternating current to frostburn; because you're bursting with crystal and because you can chase with kaku, i dont feel the slowdown from frostburn is all that useful. AC helps in almost every way; getting more CP, higher chances to get a critical, and makes your autoattack better to as now all your CP goes into damage (especially if u get that shatterglass at the end); Once you level 5 kaiten too, your clockwork should provide just enough energy.

buy defence items, and dont engage with 2-3 people if you're by yourself unless ur ahead of them and can take them on (including who you're against; such as dont fight a taka and catherine together) As Krul you should be farming, ganking and in general just looking after the jungle such as getting gold mines and if ur teammates can hold off the opponents, getting the kraken solo. Only in opportune situations can you carry.

i still dont get adagio whenever i verse him, he seems to crap all over me and i die a horrible death and seems impossible to deal damage to whenever i try to play with him, he just seems to do no damage, runs out of energy so quickly, and dies so quickly... :-/

sometimes i wish you could surrender earlier when you know its pointless as you've been hero/item/skill countered badly

been using this build... and have found it pretty amazing. i used to think clorkwork not too good with catherine as due to limited money u'd want items that 'did more' and that since u have ironguard contract u could just move to warhorn... but the cheapness of clorkwork and the reduced cooldown really helps get ur stun and armour up.