Will the seal be broken?

Dark Elven Tetrarch Talloth is studying the Dark Arts. He asks for ingredients: Onyx Beast's Eye, Taint Stone, and Succubus Blood.

1. Talk to
.

2. Kill
(17lvl, passive) until you get
.

3. Kill
(18lvl, passive) until you receive
.

4. Kill
(20lvl, aggressive) until you get
.

5. Take everything to
- get 5000 exp.