These are rare, high level abilities that characters obtain by influencing the world and the people within it in a way that justifies a power boost. This is not intermediate magic (poison, bone, magma, sand, etc), which can be taught in-game or learned with consistent play. This tier of power has higher quality expectations and is seen as a reward for exceptional actions. This might mean a well written in-game journal, or an approved application in the ability section of the forums.
Characters with a master ability already are less likely to progress beyond that point.
Master
Overflame - Fire
Sandstorm - Sand
Storm - Lightning
Blast Rush - Explosion
Volcanic Eruption - Magma
Water Dragon's Roar - Water
Blizzard - Ice
Energy Cannon - Energy
Runecasting
Exalted
Flashsword - Combat Style
Phantom - Combat Style
UltraSMASH - Physical
Flashstep - Physical
Spring's Bloom - Nature
Cruel Thesis - Nature
Vacuum Vortex - Air
Arc of Devastation - Lightning
Scorched Earth - Fire
Supreme Fire - Fire
Water Prison - Water
Frostbreath - Ice
Wintermute - Ice
Eye of The Blood Moon - Blood
Crimson Vapor - Blood
Spiral Bomb - Energy
Fall: Weight of 10x Gravity - Gravity
Starlight Overdrive - Cosmic
Cosmic Overdrive - Cosmic
Crimson Overdrive - Cosmic
Judgement - Holy
Mythic
Thunder King - Lightning
Winter Crown - Ice
Garden of Eden - Nature
Stellar Blackhole - Gravity
Celestial Ascension - Cosmic
Prism Beam - Light
Devil's Eye - Occult
Death Magic - Occult
White Magic - Holy
Spatial Magic
Nullification