Fire

Fire is the Aspect of heat & loud feelings like joy or anger, it's twin is Water

Powers
Fire's powers almost always have to due with things that cause heat themselves, things like fire & magma but can also deal with other things caused by heat or are a different form of heat like ash or nuclear powers

Limits
the aspect is a twin with water when it comes to its upsides and down sides so like water the limits tend to be the aspect itself, though it’s likely to hurt oneself with these powers unlike water.