Heavensward Relic Quest

Collect 12 Atma of each color from Each Area including 3.0 Areas
Collect 10000 Light
Have these HQ Items that only come from Master Crafters with the Specialist Role via Desynth
Collect 200000 Tomes of Law 2000 a week to buy a certain item
Collect 100000 Tomes of Esoteric to buy another certain item
Complete 32 Books which include 10 Dungeons, 500 Enemies Slain, and 25 Fates which you must get a certain item from
Complete 32 Mihatma type things with 10000 Light

Turn that in to get a new Glow

Meld 500 Materia with a special catalyst only obtainable from certain FATEs
Turn that in to get a new weapon form which shares the same stats as a Zeta (if you complete) if not, matches up with an i180 Weapon

Bit over the top, but knowing SE they'll make it slow grinding haul.