Beast Master

By integrating your Soul Affinity with the souls of beasts, you are able to be their master.

To gain XP in this skill, you need to tame wolves/ocelots and get into combat with your wolves. Simply taming the animals won't net you XP.

Spirit Summon

Spirit Summon is an active ability that will allow you to summon a wolf or an ocelot by your side. You can do this by sneaking + left-clicking while holding bones or fish.

Werecall

Werecall allows players to inspect pets and to check the stats of wolves and ocelots. Left-click a wolf or ocelot to use Werecall.

Bloody Talon

Bloody Talon is a passive ability that has a chance of inflicting a bleeding effect on your wolves' targets.

Call of the Hound

This provides a damage bonus to damage dealt by wolves. The damage bonus depends on your Beast Master level.

Proprioception

This passive ability will allow wolves to teleport to you when they get near hazards, such as Cacti/Lava. It will also give wolves fall damage immunity.

Steel Wool

This passive ability will reduce damage and make wolves fire resistant.

Searing Skin

This passive ability reduces damage done to wolves from explosions.

Druid's Call

This passive ability gives wolves a chance to heal whenever they perform an attack.

Constantine's Beast

Poison heals beast animals instead of damaging them.

Beast Force

Couldn't find information on this one either.