Historical Rules · 1 October 2009
Rule 605.1a
Official source text from the 1 October 2009 Rules release
An activated ability without a target that could put mana into a player's mana pool when it resolves is a mana ability.
Historical Rules · 1 October 2009
Official source text from the 1 October 2009 Rules release
An activated ability without a target that could put mana into a player's mana pool when it resolves is a mana ability.