Crumble [Antiquities] DP33 if your WATER monster whose

if your WATER monster whose original Level is 5 or higher battles an opponent's monster: Destroy that opponent's monster

It protects them

Annihilator 2 (Whenever this creature attacks

You cannot declare an attack the turn you activate this effect

Recent research suggests they were invented by the brothers' original master

Crumble [Antiquities] DP33 if your WATER monster whoseSet: Antiquities Type: Instant Rarity: Common Cost: {G} Destroy target artifact. It can't be regenerated. That artifact's controller gains life equal to its mana value. The spirits of Argoth grant new life to those who repent the folly of enslaving their labors to devices.