Although annoying to get every other Illuminated Engram, here's something to give a reason to keep a pair laying around. Next time a Torrent Nightfall rolls around, gather a couple Warlocks, three would be optimal, but two and a Titan is fun. With the Torrent modifier, the ability's proc near instantly resets the specified abilities. In our run this past week to try them out we had two Warlocks and a Titan. Our Titan buddy was able to build a veritable fortress of barriers while we Warlocks were able to spam grenades as fast or faster than a Sunbreaker with Hallowfire. It was a blast! Literally and metaphorically. So the next time you have them drop (which won't be too long from now) keep a set and await some Grenade spam and fortress building action in a Torrent Nightfall!