What is cool about Beast Master class? (Adventure Quest Beastmaster)

Beastmaster class.

Level 1. Beast Claw. Uses 70 MP for about that many HP damage. Earth attack only.
Level 2. Resistance Bonus. (passive)
Level 3. Call Forth Beast. One guest -- you choose the element.
Level 4. Beastial Skin. Improve your defense by 10 against your enemy's attack element. Very good against bad guys.
Level 5. Wild Force. Increases the damage your pets & guests do by 30%. This is one of the two coolest things about Beastmaster, as those extra points really do add up if you're stuck in a hand-to-hand hack-fest.
Level 6. Beast Lore. Magic attack against enemy's weakest point, usually around 50-70 points.
Level 7. Internal Beast. Raise all stats by 10. Another good spell to use against bad guys, though this and Beastial Skin will eat up a lot of mana.
Level 8. Defense Bonus. (passive.)
Level 9. Beast Mastery. The other cool thing about Beastmaster: you can choose two guests (and, you get to pick what elements they are) to fight alongside with you. Each of them average about 20 HP per attack vs. 100% defense.
Level 10. Tame Beast Spirit. The worst level 10 skill I've seen. You can absorb the attack of your enemy, and -- as long as you defeat it -- you can use that attack on the next enemy you face. I have yet to find a good way to use this power, as I am generally able to do as much damage as any of my enemies.

Overall, Beastmaster is extremely useful for its ability to call forth two guests with elements of your own choosing, and for straight weapon-based combat, it is the best I've seen (when the 30% pet/guest bonus is taken into account.) It's only real flaw is that it doesn't have a killer attack, such as Undead Mutant (Necromancer) or Ninja Death Strike (Ninja.) It is one of my favorites!