No. Trikyn is Free Roll: you choose 1 of 3 spells every two levels. Grimfall auto-rolls a full wildcard kit. This is not their core or client.

Yes as a kit. You still create as the dummy class, then draft those classes’ spells as they appear in your 1-of-3 choices.

About 40 unique lines (2 at create + one every even level), matching a full WotLK class book rather than a 200-button pile. Ranks scale; they do not consume extra picks.

The username is written into Config.wtf. Full skip-to-character-select needs the managed Wow.exe in the Dist. Until that file is published, type the same password once.