Jhin E and Karthus Q leave the same mark on the ground?

Jhin E: https://www.youtube.com/watch?v=MzsHAaFeNY8

Go 45 seconds in.

Karthus Q: https://www.youtube.com/watch?v=VkhN_a6_mdg

Go 1 minute in.

They leave the same imprint. A rose.

Any connection? Black Rose possibly? Or just a reused image.