The Dragon forest is north of the Veldt, east of the crazy man's house. It's SUPPOSED to look like the head of a dragon, but I don't see it. Just be prepared for some tough fights.

To learn rages, Strago must be hit by it, and survive. That means for stuff like Big Guard, Pearl Wind and Pep Up, you have to have Gau or Relm in the party, (or confuse the person, but that isn't always the best way), have gau know the rage of a monster who knows the lore, and use that. Relm can control the monster and then get the spell casted on the party.