How about a Pentakill emote?

Lets give Champions an emote similar to the Mastery 5 emote, that they unlock once, you guessed it, they made a Pentakill with the champions.

I mean, we already have an emote for "I play this Champion alot" so why not for "I got a freaking Pentakill with this champion!!!!"

Getting a pentakill is maybe the most exiting thing in this game (well, unless you play Darius, cause lets be honest, everyone who has Darius at masterie three or higher and has not made a Pentakill with him made some wrong decisions in life, his Ultimate could as well be named "Babys first Pentakill"), so why not give the player a little reward? ^^