Oracle

Enchantment 

Cumulative upkeep 1 (At the beginning of your upkeep, put an age counter on this permanent, then sacrifice it unless you pay its upkeep cost for each age counter on it.)
At the beginning of your draw step, destroy each creature with converted mana cost equal to the number of age counters on Wave of Terror. They can't be regenerated.

Tournooi-info

Legal in: Vintage, Legacy, Commander

Officiele rulings

6/1/2005
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.

4/1/2008
This destroys creatures with converted mana cost exactly equal to the appropriate number, not equal to or less than that number.

4/1/2008
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.

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