Historical Rules · 1 November 2013
Rule 606.5
Official source text from the 1 November 2013 Rules release
A loyalty ability with a negative loyalty cost can't be activated unless the permanent has at least that many loyalty counters on it.
Historical Rules · 1 November 2013
Official source text from the 1 November 2013 Rules release
A loyalty ability with a negative loyalty cost can't be activated unless the permanent has at least that many loyalty counters on it.