Novablast Wurm
Worldwake — mythic
Creature — Wurm
Novablast Wurm rulings:
2010-03-01: Novablast Wurm’s ability triggers and resolves during the declare attackers step, before blockers can be declared.
2010-03-01: Novablast Wurm’s ability destroys all players’ creatures (except Novablast Wurm), including yours.
2010-03-01: If two Novablast Wurms attack, they’ll destroy each other. This happens before they can deal combat damage.