Enchantment, B (1) Whenever any creature damages a player, for each Ow card in play, that player says "Ow" once or Ow deals 1 damage to him or her. Have you ever noticed how some flavor text has no relevance whatsoever to the card it's on?
Illus. Edward P. Beard, Jr.
If there are two Ows in play, you need to say "Ow" twice for each card, for a total of four times. If there are N Ows in play, you need to say "Ow" N times N times. This is because each Ow requires you say "Ow" for each Ow card in play. [DeLaney 1998/08/12]
You can use "Ow" in a sentence, such as "Ow, quit it" if you want. [DeLaney 1998/08/12]
If you fail to say the right number of Ows for an Ow, you only take 1 damage from that Ow, not one damage for each "Ow" that you didn't say. [Barclay 1998/08/13]
If there is more than one Ow card in play, each Ow card can do only 1 damage to you each time damage is dealt. [D'Angelo 1998/08/13]
All tournament formats have banned cards from Unglued.