New champion Easter Egg and Shaco related? @Riot

I have recently played alot of games with shaco (love the champion.) now i know you all know about the new Easter Egg with the swirls. This is just a theory. but i think it has something to do with Shaco. for 2 reasons.

1. EVERY TIME i play shaco, i get the easter egg.

2. now here is the tricky one.... but as i was demolishing one of my enemies buttocks. i had to use my clone to dodge an ult. When my clone came out. the Same Easter egg came out on my clone aswell.

I dont know if this is a bug. but why do i always get in on shaco? and why does it come out on shacos ult? could it be another demon?