You can practice all the weapons in non simulated places like DM, but there is currently no way to do that for things like Blade Storm, Headhunter and Tour de Force.

I suck at Headhunter because I fail at using the recoil. I hit all my shots in the range but in the actual game, I whiff hard. I wanted a way to practice Headhunter (and Tour de Force and Bladestorm) with real humans.

I got my friend in a custom unrated with cheats and we gave infinite abilities, buy anywhere, infinite money and infinite ammo and played like a dm, but when we died we had to ghost to a different spot in the map, unghost and continue playing. Worked well for 2 people, not more than that and also it was super clunky.

Is there a way to practice with these weapons well or do we just wait for riot to add a feature to buy these abilities in traditional dm's?