Matthew Hayward wrote: Questions!
For the AOW effect, can you make a monster save?
Yes, if you really want to.
If you are under some sort of confusion effect can it be used on a target you perceive as hostile?
No, I am not going to screw you over this way.
The only way the ability will be used on a monster's save is if you (the player) freely choose to do so.
For the Eldritch Runestone - can this effect be used with a heavy crossbow?
Very interesting. The Heavy Crossbow can't be fired again the next round so you can't deal the damage next round. However, if you really want to use the Eldritch Runestone effect, you could leave the Heavy Crossbow on the board (declaring use of the Runestone effect), and we'd keep the slider there for *two* rounds. You could take a different action next round (including sliding with a different slider) but your action the following round would then be the Heavy Crossbow (hopefully it is still on the board then!).
For the UR Special? can you turn in multiples to get 5 actions per ? turned in?
Yes, if you really want.
Also note that the 5 actions are for whoever turns in the UR Special. You can't distribute them or split them amongst the group.
For the UR Special? can you use the bonus action to fire a heavy crossbow a second time? Or just to reload it?
Good question! I have to say no, because the token has its own limitations. It is not ready to fire again in the same round.
Similarly, if you use a thrown weapon as you standard action, the weapon is no longer available to be thrown again as an additional action through the UR Special. You could attack/throw another copy of that weapon, but you can't throw the same token because it is not available (same with using a sliding scroll). The exception are tokens like the Dagger of Throwing, which returns automatically. You could throw that twice in a turn.
Normally you don't need to use an actual action to reload the heavy crossbow, since you can switch to another melee weapon or other ranged weapon (though not another heavy crossbow) in between rounds. I suppose if you really want to use an extra standard action to reload it, you can and be able to fire the heavy crossbow the following round. It's a bit of a waste but sure, you can do that.