Dorian In You Heart Shall Burn Siding With The Templars. The mages don t get a baris like operation line. If you sided with templars your enemies are venatori mages and tevinter warriors. If you side with the mages you get a chance to recruit or ditch him as soon as you get back to haven.
Select and confirm your selection of the in your heart shall burn operation. You can recruit him if you side with the templars.
If you side with the templars he will be in skyhold in the library i believe.
If side with the templars in champions of the just dorian will arrive at haven where you can recruit him. The gate opens you will watch a cutscene. In your heart shall burn is a main quest in dragon age. Once the north trebuchet fires you ll have to defeat enemies around the south trebuchet 7 56.