D&D 5E (2014) Multiclass skill usage

[gfailure]

Hey everyone. I'm relatively new to multicalssing and I have a couple of specific questions regarding skill usage across classes.


So, the situation. The character is Fighter 3/Rogue 3. Fighting style, Two-weapon fighting, Battlemaster from fighter and Assassin from rogue wielding 2 finesse melee weapons.

So, the questions regarding the above related to usage of skills and effect from both classes at the same attack.

Scenario 1: I use my main attack action to attack an enemy that is next to another ally of mine (effectively satisfying the sneak attack condition). Can I also choose to expend a superiority die to use a maneuver on the damage? So the total dice rolls would be 2d6 for sneak, 1d6 from the shortsword and 1d8 form the maneuver plus modifiers? Or is it because I'm using a rogue "effect" i cannot also add a fighter "effect"?

Scenario 2: Use the main attack and use Trip attack and succeed to take the target prone. Then I swing with the off-hand shortsword as a bonus action. Since the target is prone, the attack has advantage. Does the attack, assuming it connects, get the sneak attack effect?

Scenario 3: An enemy is at melee range with my character and another ally, swings at me and misses. I use Riposte as a reaction and it connects. Since another ally of mine is within 5ft of the enemy, does the attack also get sneak attack damage on it since we are at a different round and all conditions for it are actually satisfied?

Also, in a more general question, and sneak attack or superiority die roll get doubled with a critical hit?

 

[Illithidbix]

Nothing in the rules seems to impede using both sneak attack and superiority dice at the same time, providing criteria for both sneak attack and the maneuver is met.

Beginning at 1st level, you know how to strike subtly and exploit a foe’s distraction. Once per turn, you can deal an extra 1d6 damage to one creature you hit with an attack if you have advantage on the attack roll. The attack must use a finesse or a ranged weapon.
You don’t need advantage on the attack roll if another enemy of the target is within 5 feet of it, that enemy isn’t incapacitated, and you don’t have disadvantage on the attack roll.

So as far as I can tell: yes to 1) 2) 3)

1) I can't see any rules or guidelines that suggest you can't use two class features at once. Unless there is some other specified limiter.

2) Seems fine to me, and a good use of the maneuver. Of course you're still limited to one sneak attack on your turn despite having multiple attacks, but if you haven't met the sneak attack criteria on your first hit but do on your second, then I don't see anything stopping you.

3) is curious because as you correctly indicate sneak attack can only be used once per turn, but if you get an attack outside your turn that meets the sneak attack criteria then it seems you can have a second sneak attack in a round. Otherwise it would be phrased "When you take the attack action..." or similar, which can only happen on your turn.

And yes: ALL DAMAGE DICE! including sneak attack and superiority dice (and paladin smites) are rolled twice when you get a critical hit.
Mike Mearl's tweets (which aren't actually offical but close enough for most people) have confirmed this.

 

[BoldItalic]

Also, in a more general question, and sneak attack or superiority die roll get doubled with a critical hit?

Just to clarify, you roll all the damage dice twice for critical hits; you don't roll them each once and double the numerical result. Otherwise, yes.

 

[gfailure]

Thanks for the replies guys, and yes for crits, I did mean roll the dice again

 

[Li Shenron]

3) is curious because as you correctly indicate sneak attack can only be used once per turn, but if you get an attack outside your turn that meets the sneak attack criteria then it seems you can have a second sneak attack in a round. Otherwise it would be phrased "When you take the attack action..." or similar, which can only happen on your turn.

I agree all those cases are positives

And it's true that there was a discussion last year on this particular point, since normally you would expect abilities to be limited "once per round", rather than "one per (anyone's) turn", which makes the number of times dependent on how many allies/enemies are in the battle.

But it's likely not much of a problem in the end. The Rogue can get 1 sneak attack on her own turn plus 1 sneak attack on her reaction (if she can use the reaction to make an attack). Extra Attacks from another class, Action Surge, and two-weapon fighting (or other abilities that grant an attack via a bonus action) won't increase the amount of sneak attack per round. But abilities that grant you more turns (see Thief's 17th level feature) or more reactions (Tunnel Fighter feat?) will do.