Brandish and Final Attack

But Ciders give 20 Weapon Attack, which gives 8 ATT more than Rage, and it lasts 2 minutes longer. That means it isn't worth adding any points into Rage in my opinion.

Edit: However, having Rage can save you some Use Inventory slot for some HP/MP pots, because Ciders can take away 1 slot if bought or collected. Ciders are difficult to stock up earlier on, but once you have even more Use inventory slots (especially if it's maxed out), you can have up to 60+ Ciders.

12 att for minimal MP and no use slots
vs.
12 att for 5k mesos every 8 minutes (1 Use Slot for 4 hours)
vs.
20 att for 1k mesos every 5 minutes (48 Use Slots for 4 hours)

Ciders are an impossibility to train with for anyone who doesn't expand their Use inventory. Rage is better than other pots in just about every way except that it's dispellable. So use Ciders for killing bosses and Rage for everything else. But wait, Cygnus are too nub to get past 120, so they won't be doing much bossing anyway.