Wave of Terror
Weatherlight — rare
Enchantment
Wave of Terror rulings:
2008-04-01: This destroys creatures with converted mana cost exactly equal to the appropriate number, not equal to or less than that number.
2008-04-01: If you don’t pay the cumulative upkeep, you’ll sacrifice Wave of Terror before your draw step begins. It won’t destroy any creatures that turn.
2005-06-01: Will not generally kill zero cost creatures because the age counters go on before the ability triggers. If would be possible if something like Power Conduit were removing counters.