dofus kamas is a good key to go to the dofus. Your fighter is number of action points determine his capacity to act. Executing an attack, casting a spell are actions that cost you action points. For instance, attacking with a weapon costs in general 5 APs. When your AP number reaches zero, your character can no longer act. Set to 6 Ap for all fighters, this number can either be increased or reduced with spells and equipments.
Each element corresponds to a characteristic. Spells and certain equipments are influenced by elements. Therefore, it enables you to increase the damage caused, the cares or the dodging capacity. It enables you to gain kamas easily, evade AP and MP losses. It also increases chances to make your enemies lose APs or MPs and increases the power of damage rebound spells.
Spells have various effects that you must learn how to control to be efficient, heal, summon a creature, reduce the MPs of your opponent, increase the cheap kamas of one of your allies. There are many different combinations. Some spells also enable you to inflict damage or to increase them. Just like weapons, they have a range and an effect area.
On top of class spells, you will be able to buy or drop spells. The major ones must be leveled up just like skills, and some others are just more outlandish like the summoning of arachne, for instance.