Elements

There are 5 elements, each of which has a sigil (i.e. symbol, emblem or insignia) and a colour. All heroes and undeads are aligned with one of these five elements. In the case of heroes, the colour in the border indicates which element the hero has an affinity with. For undeads in battle, the ground beneath them is coloured to indicate their element.

In Battle
Groups of 3 or more of the same element combine to form damage-dealing energy. This is used in battle to weaken the opponent by lowering the opponents HP (health points). When the opponent's HP is zero, he is defeated and retires from the battle.

When attacking (i.e. dealing damage) or defending (i.e. taking damage), each element has one element that it is strong against and one element that it is weak against. Strength means that the damage is doubled, whereas weakness means the damage is halved.