Historical Rules · 15 July 2011
Rule 704.5f
Official source text from the 15 July 2011 Rules release
If a creature has toughness 0 or less, it's put into its owner's graveyard. Regeneration can't replace this event.
Historical Rules · 15 July 2011
Official source text from the 15 July 2011 Rules release
If a creature has toughness 0 or less, it's put into its owner's graveyard. Regeneration can't replace this event.