Finding love on DK safelane

I just watched micke on safelane dk and after playing on safelane, I just discovered something. He's a better naga, atleast in map pressure in my archom POV. After getting agha manta octa, he's just unbearable if he gets a neutral item with cd reduction. Atleast 20 sec manta cd, 67.5 cd on dragon form. Question is, what are the heroes that makes him unplayable in safelane. And after getting boots, midas, dag, bkb, agha's blessing, octa. What would be your 6th slot after upgrading your dagger and selling your midas?