About Stonekeep

sorcery - requires a magic staff onto which you inscribe combinations of magic runes that produce various effects, modified by meta runes and so forth (in the tag's grey area)

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ambidextrous - has no significant gameplay effect. simply determines which mouse button activates it and which hand on the screen uses it. ergo, this is primarily a graphical gimmick. no way to swap handedness without dragging and dropping the tools between hands.