I remember wondering if the black widow was stunable; it seemed to have higher stats against it. I only beat it at 22 mil.

Formation:
x x x
shayd calvin main
x cianna blood

First on my server had 24 mil and used:

x calvin ciana
x x main
x shayd blood

Third on server had 16,6 and used:

main cianna saffron
x x x
x shayd blood