Homerun Ornn.

Ornn as a baseball player, the ult is a large baseball surrounded by flames and fire to help with the visual scale, and he swings a bat to knock it out of the park. Could add a cheering sound effect. Yay or nay?

Edit: Could also be called "Grand Slam" Ornn since a good ult knocks up the entire enemy team and sets your team up to score.