Greasy Fork is available in English.
Let's you see players behind walls. Comes with a wireframe view mode and an aimbot too. Press M, N and T to toggle them.
< Feedback em 1v1.LOL Aimbot, ESP & Wireframe View
It should work on both 1v1.lol and the older 1v1.school link.
What version of 1v1 lol does this work on? Or will it work on any version