Forum:A Defender the magical knight question

I'm just confused about this card's effect because some players I duel usually defines it in a negative and sarcastic light. To remove any doubt I post this question. Thx for answering this (whoever you are!).

The effect of Defender, the Magical Knight once per turn, if a FACE-UP Spellcaster-Type monster(s) on the field would be destroyed, you can remove 1 Spell Counter from a card you control for each of those monsters instead. What if the opponent attacked my facedown monster, surely the facedown monster will be flipped and be revealed, if it's a spellcaster can Defender, the Magical Knight save it?

Another: The "you can remove 1 Spell Counter from A CARD YOU CONTROL for each of those monsters instead", does it mean that you can only remove spellcounters from just 1 card not multiple cards? --SilentHero26 08:16, October 14, 2009 (UTC)