Onyx Annulet recommending healing stones for DPS

BiB is recommending a Exuding Steam Stone for DPS.
Snapshot: e5cc42e4a84342268536a582de796c9c

It is with a Prophetic Twilight Stone, but I assume the triggered effect wouldn’t be as much gain as using a Desirous Blood Stone (or 2 pure DPS stones)?

I also note: Desirous Blood Stone isn’t in the “gem” list to be able to manually pick.

Do you own a Desirous Blood Stone? Best in Bags limits it to the actual stones we see in your inventory and the ones already socketed in the annulet(s) you own.