[quote]I have every season of the wish gun crafted. Optative hasn't dropped once. Have tried to buy the guaranteed deepsight weapon, but it just drops nothing. It still deducts the engrams from the vendor. I have spent a lot of time in the coil.[/quote] If you haven’t collected an opative up to this point, you cannot focus them or get red borders from Riven. You have to have an RNG drop in the Coil or the Lair before focusing them.

Highly recommend the Star-Crossed exotic missions, especially the secret chests each week, it seemed to always drop at least 2-3 Red Borders per run, at least when I ran through it earlier in the season.