Historical Rules · 24 January 2020
Rule 306.8
Official source text from the 24 January 2020 Rules release
Damage dealt to a planeswalker results in that many loyalty counters being removed from it.
Historical Rules · 24 January 2020
Official source text from the 24 January 2020 Rules release
Damage dealt to a planeswalker results in that many loyalty counters being removed from it.