One thing that came up in a session I was playing was when our Drunken Monk was fighting three enemies, one in front and two behind. The one in front missed and the Monk used redirect to hit an enemy behind her. The issue I'm having is that by RAW this seems OK, but the baddie (A) has a reach of ...

I have found no satisfactory answer anywhere online or in any manuals. What is the difference between a simple weapon and a martial weapon, really?

In 5th edition combat, does a character using a ranged weapon like a bow or crossbow get to add their dexterity to their damage? Such as a rogue with a 15 Dexterity using a light crossbow, would they deal 1d8+2 damage?

Like say, you use the rogue's cunning action to disengage, then you ready your action to shoot at the enemy when an ally gets within 5 feet of them. Would this work?

I was wondering why powerstones rise quadratically in price and linear in value. Instead of a 10pt PS for 1,900$ I could get 3 5pt PS for 595$ each and save 115$ for having 5 extra net mana in the end. I know that I can only use one powerstone per spell and it must be touched by the wizard. But ...

The Samurai archetype (from Xanathar's Guide to Everything) gains the following class feature at level 15, which says: Rapid Strike ... If you [...] have advantage on an attack roll against one of the targets, you can forgo the advantage for that roll to make an additional weapon attack ...