Brelal’reth stands inside the Inquisitor's Chamber of Crèche Y'llek, near the entrance. She will encourage the party to talk to the inquisitor and tell them it’s an honour. However, if the player character is a Githyanki themselves, she will react milder, expressing hope that they have brought good news.
Normal weapon damage + Superiority DieWeapon damage
Spend a superiority die to deal Weapon Damage + 1d8 Physical damage and potentially force the target to drop the weapons they are holding.