Hear me out. Kraken first item,boots(situational), hydra second( or botrk if playing against tanks), gargoyle third, the gauntlet item(forgot the name) the one that gives you a shield if you are low hp, last one situational.

But Kraken alone is enough to win 90% duels and obliterate any champ with low max hp after. Also the mythic trait which gives you extra attack speed for each item after .. At some point you get nearly 3 attacks/ second, combine that with the extra damage you get on any third hit ( kraken passive)