There are Creature Tamer NPC’s in each town who vendors’ creature cards for low level pets. You can purchase the cards and have it in your inventory and while the taming skill is active you must defeat the same type of creature on the card. Once the creature is defeated, the creature will become your pet.

Also, you can earn a creature by hunting mobs in the game. When the creature drops a creature card you can defeat the same creature again to make them your pet.

You can purchase new skills by using Job points (JP) by earning them through hunting monsters and also by completing quests. Depending on your Job level you will receive new skills.

Note: Your Job level can not surpass your character level.

Condition system is where depending on your stamina level you will receive more or less EXP and JP. The higher your stamina you will receive more EXP and JP by hunting monsters.

You can restore stamina by resting or drinking Stamina potions. If you are in town, your rate in which your stamina increase will be higher. Also, when you log off your character will automatically gain stamina.

No, there is no Condition System with Creatures.