Shields Up To 1 Million Health At The Start Of A Battleground/Dungeon/Raid (Patreon)

The following exploit requires access to the Third Chapter of the Chains Of Domination quest "Untangling The Sigil". This is the quest where you awaken the Runecarver/Primus's memory and face off against the Jailer.

During this confrontation the Primus gives you a number of anima powers, which mostly stack to 25. The first part of the exploit simply requires you to log-in and out which gives you 25 new stacks of each anima power-do this three times and they stack to 100-the maximum the game allows.

At first this seems pointless as you can't takes these powers outside the immediate area. However your health stacks to 1500% of its normal total, which allows you to cast very powerful shields, which are "snapshot" based on your health at the moment of casting. On my warlock I could get a 790K shield-15 times that of my lock's normal health. A tank or a player optimizing for HP with food buffs elixirs etc could easily get >1 million.

The best shield to use for this purpose is the Necrolord covenant ability "Fleshcraft" which lasts a full 2 minutes. Mage shields, which last a minute, can also be useful. 

While useful in all content this is exceptionally useful in battlegrounds. Many battlegrounds are essentially over after the first two minutes of play - and what is effectively a tank regardless of class with 1500% health will usually be decisive in the first skirmish. 

To time this correctly: when the battleground que pops start the in-game stopwatch and when it is about to hit 1:30 cast fleshcraft or other shield, then enter. This maximizes your shield time.