Historical Rules · 1 February 2010
Rule 112.6c
Official source text from the 1 February 2010 Rules release
An object's ability that modifies what that particular object costs to cast functions on the stack.
Historical Rules · 1 February 2010
Official source text from the 1 February 2010 Rules release
An object's ability that modifies what that particular object costs to cast functions on the stack.