Historical Rules · 25 September 2014
Rule 602.4
Official source text from the 25 September 2014 Rules release
Activating an ability that alters costs won’t affect spells and abilities that are already on the stack.
Historical Rules · 25 September 2014
Official source text from the 25 September 2014 Rules release
Activating an ability that alters costs won’t affect spells and abilities that are already on the stack.