If you're going to add a difficult mechanic like Sion's ult, please give us a practice mode

I am one of the players who really like Sion's new ultimate as it gives the game another difficult mechanic and actually something that is rewarding for landing it.

However, I really suck and I miss 90% of my ultimate everytime I play as him. Many Sions i see also misses most of their ult. This sometimes create toxicity among teammates who will just shout and trashtalk you for missing this skill and ending up being a useless meat sandbag.

I really hope that there is a mode that I can practice a champ without having to go into a custom, farm to6, use it once, and then wait another 2 minutes to use it again. The lack of this mode encourages people to not give a care and would just run into normals and perform horribly with their skills. tldr; please give me somewhere to practice sion's ult. Or if you're kind enough give us like a flash game where the controls are similar to sion's ult.

Thank you.