Astro:

Use your 2-min, then click on the same button again for 600 POTENCY!



Gunbreaker:

Use your 2-min, then click on the same button again for 1000 + 1200 POTENCY!



Machinist:

Use your 2-min, then click on the same button again for 700 POTENCY!



Red Mage:

Use your 2-min, then click on the same button again for 520 POTENCY!



Scholar:

Use your 2-min, then click on the same button again for 700 POTENCY!



Monk:

Use your 1-min, then click on the same button again for 1300 POTENCY!



And of course, tons of upgrades to job actions that totally aren't just cosmetic changes!

"Yeah duh, you get 30 more potency, it's not the same anymore!!"