Ad Infinitum II: Upper Bound
From Guild Wars 2 Wiki
Ad Infinitum II: Upper Bound is a Legendary Backpacks achievement that requires items from the Fractals of the Mists in combination with some specific tasks. This collection is the second step to obtain the second tier of the precursor, Upper Bound.
Achievement[edit]
Ad Infinitum II: Upper Bound  Legendary Backpacks  6 

Collect all 11 fractal tier 2 components.Unlock all 11 fractal tier 2 components to work towards building the legendary fractal backpack.

Collected 1 Fractal Components  1 
Collected 5 Fractal Components  2  
Collected 11 Fractal Components  3 
Notes[edit]
 The fractal levels provided under "Acquisition" are the minimum levels that must be completed.
 Salvaging Finite Result will always yield 5 balls of Dark energy, 4 of which are needed to buy the Aetherblade Handbook and craft Upper Bound.
 ^{[1]} Takes a minimum of 10 days to complete, as you can only earn a maximum of 3 Fractal Research Pages per day.
 Hint: It can be done in only 7 days (4 Fractal Research Pages per day), if you do the Challenge Mote of the Nightmare Fractal each day, since it gives an additional Fractal Research Page.
 ^{[2]} Doesn't need to be built again if you have already built it. Higher tiers will automatically unlock the collection.