Martial Arts: Elemental Spheres and Powers

The majority of Hubworld's martial arts systems draw upon extraplanar powers to accomplish their feats. Some of these even unlock the potential to wield spell-like powers upon Elemental Mastery. To achieve this final ability, the martial artist must master both the art and the associated element (see Proficiencies: Elemental Mastery).
The sphere associated with a given martial art confers bonuses and penalties in relation to arts of other elements or denizens of other planes as follows:

Elemental Sphere	AC bonus 1 vs	hit bonus 1 vs
Elemental Mastery:	AC bonus 2 vs	hit bonus 2 vs
Void	Light	Spirit
Light	Time	Void
Time	5 Elements	Mist
Spirit	Void	Time
5 Elements	Spirit	5 Elements
Air	Smoke	Smoke
Mist	Water	Metal
Water	Mist	Fire
Wood	Earth	Air
Earth	Metal	Water
Metal	Wood	Earth
Fire	Air	Wood
Smoke	Fire	Light
(natural)	none	none

Elemental Powers
An elemental sphere need only be mastered once. Mastery of an elemental sphere means that the Elemental Power of any MA in that sphere will be available upon mastering that art.
Elemental powers differ from the spells they are named for in the following ways:
1) There is no material component (although certain environmental conditions may be required)
2) The somatic component is incorporated into the art itself
3) The verbal component consists of a single power-word
4) The casting time is 1 segment
5) A style's Elemental Power may be used as many times without replenishing as there are levels in that MA. Uses are replenished at a rate of one per half-hour of meditation up to their maximum.

Extraplanar Connections
Elemental martial arts draw power from the inner planes. Denizens of these planes, as well as the outer planes, are effectively fighting as martial artists of the associated element, receiving the appropriate bonuses and penalties against elemental martial artists or extraplanar beings.

Element	Inner Plane (Source)	Outer Plane (Orientation)
Void	Negative Material Plane	Abyss, Pandemonium
Light	Positive Material Plane	Arcadia, Seven Heavens
Time	Proto-Elemental Plane of Time	Nirvana
Spirit	Astral Plane	Twin Paradises, Elysium
5 Elements	Ethereal Plane	Concordant Opposition
Air	Elemental Plane of Air	Olympus
Mist	Para-elemental Plane of Vapor	Gladsheim
Water	Elemental Plane of Water	Limbo
Wood	Para-elemental Plane of Ooze	Happy Hunting Grounds
Earth	Elemental Plane of Earth	Tarterus
Metal	Para-elemental Plane of Magma	Acheron
Fire	Elemental Plane of Fire	Gehenna, Nine Hells
Smoke	Para-elemental Plane of Smoke	Hades
natural	Prime Material Plane	n/a