ZZ'Rot the House!!!
I gotta say I love this item but I feel like it needs slight trimming, HOWEVER wait 1-2 patches at a time per nerf before implementing another:
1st nerf lower winion HP slightly on ZZ'rot and Raptor's Cloth (Ingredient item) Lower it's passive's MS from 20% to 10%(Still same MS on zz'rot)
2nd nerf ZZ'rot- Lower the duration from 150->120 seconds
I personally feel that after the first nerf ZZ'rot will be more balanced without needing the other nerfs though. Tell me your thoughts in the comments below.