- All the tomestome mats you need to buy for the base relic / zenith were indirectly nerfed by tomestone replacements. The game launched with Tomestones of Philosophy, and every special currency they released afterwards replaced the previous one until you got Poetics. With every upgrade, the number of tomes you needed to get the mats went down.
- Atma: The 12 Atma you needed to gather by doing FATEs had a ludicrously low drop rate of 5-10% per fate. Now its around 25%, which is still low, (48 fates on average to get all 12), but still better than it was before.
- Animus: Each of the nine book you need to complete required tomestomes to buy, so they got nerfed with the tomestone changes over time. This is the step that is arguably the most time consuming, but still got the lightest nerf: For every single book, you need to kill 10 different monsters, 3 dungeons, 3 levequests and 3 specific fates. The nerf made it so instead of killing 10 of each monster, you only need to kill 3 of each monster. As if
that's the time consuming part of it.
- Novus: You need 75 Alexandrite/materia to finish this part. Alexandrite is obtained via special treasure maps that only dropped one at a time, but now drop 5 at a time. You can also buy the maps for tomestones which, again, got nerfed by having more valuable tomestones be added later. The materia side used to make it really expensive (you used to need to get up to rank 3/4 materia for a specific stat back when it relevant content), but because the weapon is obsolete, you can just fill it up with cheap tier 1 and tier 2 materia of any stat.
- Nexus: With the Relic equipped, you need to beat any instanced content (dungeons/trials/etc) to fill up your weapon with 2000 "lights", with the specific content you do giving differing amounts. The value of lights used to be really low (with 1 for the weakest tier for stuff like Cape Westwind), but now the values are much higher at 8/16/32/48/96/128. Plus, there's 2 hour periods were certain instances have double light values, making it go by even faster.
- Zodiac: Instead of Fate anima, this step had "dungeon anima" which made you run dungeons with a 25% chance of getting the drop at the end. The nerf made it so those items dropped 100% of the time instead. You need to finish four different quests to finish the step, and to finish them, you need over 400k gil, 80k Company Seals, 1600 Allagan Tomestone of Poetics, drops from 16 dungeons, 8 3-star HQ crafted items, many desynthesis items and some miscellaneous items. Overall the most time consuming step alongside Novus.
- Zodiac Zeta: a joke final step to get your weapon to i125. It "combines" some of the previous steps with 12 Atma that you need buy for 50 poetics each, then fill up with lights the same way as before, but you only need to get 40 lights per atma for a total of 480 versus the 2000 from before. Didn't get a nerf because it didn't need one.