Tethered Griffin | Magic: The Gathering
Formats Tethered Griffin is Legal in
Official Oracle Text for Tethered Griffin
When you control no enchantments, sacrifice Tethered Griffin.
Official Rulings for Tethered Griffin
10/4/2004 : Only checks if you control no enchantments at the time it triggers. It does not check again on resolution. Gaining control of an enchantment before then will not save the Griffin.