I've noticed with the Launch of Lightfall that Bungie has pushed even more ads in encounters than before. Respawn frequency and number spawned. Legend Avalon certainly posed a challenge for myself and a bud of mine in the beginning but once we had a science to it, we pushed out the catalyst runs in about 25 minutes. I feel Bungie is going to stick to this tactic with their plan for "Increased difficulty." I personally ran the Legend Avalon only on my Titan. I never saw a reason to run it on my other Characters. I hadn't bothered to run this solo myself but I will say that I personally didn't think the ads where tanky but definitely overwhelming if not constantly dealt with. I ran a Volatile Bubble build with Saint-14 and did fine. Cleared spawn waves in seconds. Commemoration LMG, Unforgiven SMG, and an Auto-load / Blinding Pardon Our Dust GL was my main loadout up until Brakion. Swapped my GL for Arbalest during the Hydra to use up the Special that dropped and swap back to the GL to have blinding for the Wyverns. Wish-Ender Brakion and profit. At least that was 2 manning with a friend. Bricks from Beyond enabled me to constantly use my LMG. My Titan used the Bastion and Controlled Demolition Aspects Magnetic grenade / Rally Barricade / Shield Bash Instability Fragment Starvation Fragment Undermining Fragment Not sure if this helps but I thought I'd share on what worked for me. Maybe it'll work for somebody.