If you could change a skill completely.

What would it be?

For me it's Loki's Vanish to a Disguise. He turns into a minion/creep that he targets. Just like his vanish his health etc cant be seen by the enemy. But his movement speed is the same as the minion he copied.

You could practically just ambush anyone. Kill one harpy in mid camp and copy the other right when the enemy mid will get their harpy farm.

Would be funny, but would also remove his usefulness as a jungle entirely. Loki out of stealth might as well paint a huge red X on himself.

That would be such a good troll though. "Wait there's 7 minions in this wave? Oh ****......"

I would change Arachne's web. Probably the most "meh" ability I can think of. I would suggest what to change it to but there's currently a whole topic for that! Another one I'd change would be Isis ult. It's not useless, but it's definitely one of the less effective and harder to use ults. It would be much stronger if the circle was centered on Isis herself as an aura, instead of being a stationary area (damage values might have to be toned down since it does 4000 or something crazy at full charge currently).