Elemental Beastmaster: This Beastmaster is a MAP User. Uses magic attacks, but should still have good HP so you can last battles. They should use a map weapon like a spear.
Str: None (This if if your going to use a weapon like Platinum Shade if your going to use Victory Spear then put 146 str)
Dex: None (Not Needed for map characters).
Con: 700 or 800 (BM's Naturally have low map so save some points for int).
Int: 2665 or 2565
Pure Beastmaster(Summoner): They count on their animals for killing their enemies, They need defense to make up for their lack of con, so I recommend a shield and a throwing weapon for more defense but you could also use map weapon.
Str: None
Dex: None
Con: 500
Int: 2865 (You will need high int because your animals power is based on your int).
Nature Beastmaster(Damage): This beastmaster can have great resist and good defense with his Nature transformations, and also this beastmaster can have really great resistance it usually has a shield and a throwing weapon on a mortal but this is your choice.
Str: 300
Dex: 1765
Con: 1300
Int: None