So you're full abyss infused and you're looking for gear you can work on. Pazunia gear is a direct upgrade for abyss infused and exists for all non-vis slots.
There are SIX custom content bosses with different mechanics that drop the template which is used in a similar recipe as the abyss templates.
These bosses can be triggered once every two hours and while most can be done by an abyss infused tank and a healer, it is not recommended without additional dps.
Zuggtmoy
#zone direwind 262 1936 57
Kill all 8 quickspore/manasheen/etc groves in the caves and she pops by this loc. She hits moderately hard but more importantly casts a litany of powerful dots including Pandemic.
Drops Earrings and Neck.
Avalanche
#zone icefall -2897 -1700 -212
Hail the giant nearby. Avalanche will spawn across the way but be untargetable for now. If at any time during this event the original giant dies, you fail. The giant will die if so much as a slight breeze rolls through so do everything in your power to keep him out of danger and heal him if he takes damage.
Avalanche will spawn two waves of three shards of ice. He will then spawn one wave of two blocks of ice. The blocks of ice split into two when killed. Once all are dead, Avalanche attacks. Hits slightly harder than Zugg and procs a knockback called Ice Avalanche. At 80% the original giant will charge Avalanche like a suicidal moron. At 50% Avalanche spawns 2 adds that hit fairly hard but die very quickly.
Drops Back and Shoulders
Pazuzuzuzu
#zone mesa 3498 1287 260
Complete the Blackfeather Roost progression. These quests can be found on alla and are fairly simple albeit a bit time consuming.
On the fifth isle, in the NE cave you will find Pazuzu. Hail him to start the event. Initially, six magic immune Vrokk's will attack. Upon killing them, the General attacks. He is weak and dies fairly quickly. Upon killing him, Pazuzu attacks. He is also weak, but has a truckload of hp.
Drops Belt and Rings. Note this boss does not always drop a Paz item but can be spammed by leaving and immediately creating a new instance.
Kostchtchie
#zone frostcrypt 289 249 -240
Kill all the trash in the room and the side rooms. Killing the last giant in a side room will trigger the room behind them and adds will charge you; if only 2 adds charge you may need to go back and get the others. Killing 4 Brutes will trigger a Shaman to attack, you do this 3 times, one for each side room. Also, when I did this, one priest was a landmine that was significantly harder than the rest. Once all rooms are clear K-dog will spawn in the middle room. Hits exceptionally hard and is typically killed by a certain class that shall not be mentioned. Do not try to tank him with an abyss infused tank. They will die horribly.
Drops Shields and Ranged Items.
Tarrasque
#zone steppes -432 -501 94
Gary Gygax will be your dungeon master for this fight. Hail him to begin the encounter.
Occasionally Gary will whisper a character and tell them to roll. If the character says roll, he will roll a d20 with the result affecting the fight. If the character fails to acknowledge the roll, Gygax rolls and typically bad things happen. Tarrasque himself hits moderately hard but also can spawn adds and do other things that make things more complicated. He also has significantly more hp than any other boss and the fight difficulty and length will be very dependent on your luck with the dice.
Drops Rings and supposedly Mask (unconfirmed by me).
Hades
#zone Ashengate -12 2011 -184
Hail Hades to start the encounter. Spawns two mobs, Pain and Panic. Pain is magic immune and Panic is melee immune. They both hit very hard, cannot be split, and have to die at approximately the same time. We were unable to complete this encounter and I will update the guide when we do.
Take great care to kill them at the same time. Panic often takes longer to kill as magic damage isn't as prevalent. If they aren't killed at the same time, they repop and both are SIGNIFICANTLY stronger.
Drops Paz Weapons (unconfirmed by me)