91% vs a minimum of essentially 96.5% chance to land sneak attack, which goes up even higher anytime i'm using both attacks, and nearly reaches 99.9% anytime I start a turn with advantage and can make both attacks, which will be quite often.
Don't know where your getting advantage from. You can't use both Steady Aim and the bonus attack.
Are you just assuming an ally gives it to you?
At this level you are talking about +3.5 damage vs my bonus action that does +7.5 damage.
The +10 at the start of combat isn't keeping up with both the accuracy and damage differences.
7.5 - 3.5 = 4
10/4 = 2.5 rounds to catch up.
I would only when a combat just started and I don't have advantage some other way and an ally isn't engaged yet.
Then you wouldn't get your bonus attack the first round.
So really, 3.5 rounds to catch up to the +10.
And damage early > damage later.
He can take mage slayer instead.
Sure. But Assassin has +2 Wis
And can take Resilient (Wis) or Inspiring Leader.
But if you are using those then until you hit assassin 9, your basically immobile.
Slow/Push doesn't require advantage. Or even sneak attack.
And moving reduces DPR for both.
I'm saying 2d6 from true strike + 5 from GWM is 12 damage vs my 7.5 from bonus action. However, Soul Knife has significantly higher accuracy.
And a d10 vs d6
Only way to be sure is to math it.
Level 11, so 3 ASI each.
1D10+5+5d6 sneak attack + 2d6 true strike + 4 GWM
= 42.5 * 91% = 38.675.
+9.1 per combat.
1d6+5*.86 = 7.31
1d4+5*.86 = 6.45
6d6 sneak attack * 0.9804 = 20.5884
= 34.3484
Assassin does more even without the turn 1 bonus. Soul Knifes accuracy boost isn't enough to make up the difference.
Soul Knife does have the Improve Cunning Strike though. Assassin being a level behind.
Also I'm using the background feat which Soul Knife would still have open.
The medium armor covers AC but also hurts stealth alot, especially when not having max dex.
Sure, but why use Stealth when you have advantage on Disguise?
Kill the King while dressed as the Queen is much better than killing from the shadows.
And IMO, the soul knife is quite a bit better out of combat than the assassin.
Probably. Though I could see Assassin doing better in certain campaigns.