Historical Rules · 13 July 2013
Rule 509.4
Official source text from the 13 July 2013 Rules release
Fourth, any abilities that triggered on blockers being declared go on the stack. (See rule 603, "Handling Triggered Abilities.")
Historical Rules · 13 July 2013
Official source text from the 13 July 2013 Rules release
Fourth, any abilities that triggered on blockers being declared go on the stack. (See rule 603, "Handling Triggered Abilities.")