The rules are, you try and figure out or make a joke about who you think the summoner above you plays based on their summoner name.

I.E. My name is Exhael.

"You must play karma cause she really blows."

You must play Ezreal because woman.

Singed cause you like to run spirals around your enemies and squirt poisen out.

Teemo because for some reason your username reminds me of him

Jax because 2 fingers and a thumb, per hand

You shall play Vladmir since your name reminds me of blood... lots of crimson blood

Twitch mr ratz

Master yi^^

^^brolaf, cause you have 420 in your name

heimerdinger cause his head looks like cauliflower