Beat the Beasts
Dantes from the Force in Unison Gaming Channel talks about fighting monsters that are 20+ levels above you and how to defeat them. From making sure who to aggro the monster and use as tank, to how to build your abilities and perform chain attacks, he breaks down the best way to kill all high-level monsters. This strategy works on any battle in the game.
Let us know your success when battling high-level beasts throughout the game.