Day, also known as Oni Day, is a Smash 4 Lucario main from Florida. He is considered to be the best Smash 4 Lucario player in North America and one of the best Lucario players in the world along with Tsu-, having defeated players such as ZeRo, Mew2King, 6WX, Spark, dyr, and Ryo. He has had amazing performances such as 13th at EVO 2016 and Apex 2016, and 1st at EagleLAN, and as a result was ranked 38th on the Panda Global Rankings.
At Super Smash Con 2016, he became the 14th player to take a tournament set off ZeRo in Smash 4.
On January 19th, 2017, Day signed with the eSports organization G-Force as their first Smash player.