Historical Rules · 10 August 2018
Rule 106.4b
Official source text from the 10 August 2018 Rules release
If a player passes priority (see rule 116) while there is mana in their mana pool, that player announces what mana is there.
Historical Rules · 10 August 2018
Official source text from the 10 August 2018 Rules release
If a player passes priority (see rule 116) while there is mana in their mana pool, that player announces what mana is there.