Watchdog
Artifact Creature — Dog
Watchdog blocks each combat if able.
As long as Watchdog is untapped, all creatures attacking you get -1/-0.
Legalities
- brawl: banned
- commander: legal
- legacy: legal
- modern: legal
- pauper: legal
- pioneer: banned
- standard: banned
- vintage: legal
Rulings
- 2008-04-01:
The second ability is no longer triggered. It continuously checks the tapped/untapped status of the Watchdog, and gives them -1/-0 as appropriate.