Historical Rules · 20 January 2017
Rule 601.5
Official source text from the 20 January 2017 Rules release
Casting a spell that alters costs won’t affect spells and abilities that are already on the stack.
Historical Rules · 20 January 2017
Official source text from the 20 January 2017 Rules release
Casting a spell that alters costs won’t affect spells and abilities that are already on the stack.