Warframe Mag Prime - Level 9999? No Problem - Build Showcase

The first few minutes are just a mechanic showcase, and I actually thought people were going to click away lol. But once you have grouped a couple enemies, you can absolutely demolish :p the number of slash procs and armor strips will tear down any enemies.

Secura Penta Build:

Nataruk also seems way better, however it seems also to be unreliable from my testing, I cant change the video, but here is a Nataruk build:

Enjoy! ^^