Forum:Ancient city - rainbow ruins negation effect

Oy, I've been wondering about one of the effects of Ancient City - Rainbow Ruins for a while. The third effect says: "You can send 1 "Crystal Beast" monster you control to the Graveyard to negate the activation of a Spell or Trap Card and destroy it.". Do you have to send a monster from a monster card zone or can you pay the cost with a crystal beast monster card in a trap/spell card zone?

At first, it seemed to me like it had to be a crystal beast monster from a monster card zone, but the first sentence on myAncient City - Rainbow Ruins reads "This card gets these effects, based on the number of "Crystal Beast" monsters in your Spell & Trap Card Zone." which suggests to me that Ancient City - Rainbow Ruins accepts crystal beasts in spell/trap card zones as monsters for the purpose of its effects.

To further add to the confusion, Ancient City has been erratad to read ""Crystal Beast" cards" instead of ""Crystal Beast" monsters" in its first sentence which puts me back to my original train of thought. Anyone who can clear this matter out for me? Flesk 21:20, February 4, 2010 (UTC)