The elements that govern all of creation are divided into eight types. Under specific conditions, in the same way that gunpowder explodes when provided a simple spark, the latent elemental energy of Vana'diel coalesces into great destructive power. When this happens several times in a row, the power released is greater than the sum of its parts. This is called a "skillchain." But why do skillchains cause such powerful energy to be released? The answer is that nobody really understands a great deal about skillchains, aside from the fact that adventurers learn how to use them in the course of their adventures. However, new facts regarding the use and effects of skillchains have come to light. Energy brought forth by skillchains builds on magical effects of a similar type to bring forth more power. If, for example, you use a fire-based weapon skill such as Red Lotus and follow it up with a Fire spell, the effects will combine to release extra fire energy, creating an amazing attack. This particular effect is called a "magic burst," and its use among adventurers is growing. Creating these effects is not something one can simply do alone; it takes great practice and heroic teamwork to create skillchains and magic bursts effectively. It's not something that happens overnight. To that extent, many consider the successful application of skillchains to be the "essence of battle." It is now standard practice for parties of all levels to incorporate elemental attacks into their battle plans.