Historical Rules · 27 September 2013
Rule 704.5f
Official source text from the 27 September 2013 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 · 27 September 2013
Official source text from the 27 September 2013 Rules release
If a creature has toughness 0 or less, it's put into its owner's graveyard. Regeneration can't replace this event.