### S4E 4.3

Purchasing Edges

All character advancement is achieved through spending Experience Points to purchase Edges, and applying the effects of those Edges to the character. Everything from acquiring spellcasting ability, to improving Attributes, to attaining new Skills and improving existing Skills, to gaining new special powers and talents, is all performed by purchasing Edges--there is no other method of character advancement in S4E.
Many of the Edges found in this chapter have prerequisite limitations (Edges which must be purchased prior to purchasing them) as well as Race limitations (preventing all but certain Races from purchasing them). These limitations take into account all content found throughout this rulebook, including the variant rules found in the Variant Rules chapter. Because of this, many Edges will have Race limitations which apply to Races which can only be played by using the Wide, Wide World variant.