im 950ft of you and the Simulacrum is 1500ft.
Your turn.
That's the third change of startign positions. I'd say we really need a DM even with the provision of average rolls.
[BTW, you mentionned editing post to change HP to Lucky, I figured this was OK since it was long before you accepted the contest, but I comply, out of fairness, so the HP count is 122 and the feat is Lucky and CON is 14.
What does that even mean, with regard with having a DM?
Has someone declared himself that I you agreed to?
Sorry for actually having a life...
On initiative count 22, one of the pureblood yells karoukatchiketaf doubidou stash stash, triggering contingency for both him and the similar looking Yuan-ti riding an identical pegasus 10 ft from him.
The first yuan-ti elects to make the destination of his dimension door a point in the air 240 ft from the nearer rider (but not right under, in the direction of Candlekeek for the rest of the allowed distance) and casts distant dispel magic, using his action and a 3rd level spell slot, possibly being Lucky to reroll any resistance (for an average roll of 15 without being Lucky, 20 if needed. Since nightmare aren't natural creature, they have certainly been summoned to this plane by way of magic, which could have different effect if the spell was instant, long lasting or concentration, which the yuan-ti has no way to know. DM, what happens?