I've just experienced the most unkillable bot lane duo on earth

See, I played as with an ADC , and I thought we were a pretty fantastic duo.

I dove too deep trying to secure a kill near the enemy red, waddled out with my shield to his lantern. We then ran into the river as the enemy Gragas ulted. I ate Thresh just as it hit to avoid us getting split up and ran. We made it to our inner mid tower before their fed Akali managed to finish us off.

And I thought Kalista and Thresh were unkillable at six......

TK makes almost any ADC unkillable.