|Description||There are spells that propel you sideways or upwards, why not go for broke and make one that functions like ride the lightning/storm dash and only increases your speed downwards? Combining this with an element (you turn into/ are surrounded by a rock/meteor, for example) would let it double as an attack. The obligatory plumber reference is even present elsewhere already ^^|
If you hit the ground while accelerated your falling damage could increase (unless in water/the ocean). This could be counteracted by a) the featherweight enchant, b) hitting an enemy and bouncing off or c) performing a double-jump. Or just on or two of them.
For example, if you do not bounce off when touching an enemy but pass through them instead, you could get down a lot quicker.
Optionally one could disable sideways movement while the spell is active and/or make the spell end only on impact.
Activation could be to double-tap "down" while in the air.