Is it possible to attack (possibly multiple times) in the middle of a horizontal or vertical jump?

College of Swords, Blade Flourish intentionally requires a weapon attack

Horizon Walker: when casting, do they count against the total number of spell slots for your PC’s level?

Can a battlemaster use his disarming maneuver to take away a component pouch from an enemy?

Would you say monk ki and mystics psychic abilities are different from arcane and divine?

What if you true polymorph a vampire?