[quote=@Lurking Krog]
[@Guardian Angel Haruki]

The stats for the Leonin are in the MtG related source books yes?
[/quote]

I remember seeing that it was from Eberron in the past, but now I can only find it from Mythic Odysseys of Theros in 5etools. 

Here is the link to the stats just in case: https://5e.tools/races.html#leonin_mot