Forum:Discard cost

Ok, so on lightning vortex it reads "Discard 1 card. Destroy all face-up monsters on your opponent's side of the field.". So how is the discarding a card a cost for using lightning vortex? I would understand if it read "Discard 1 card to ..." but it doesn't and is in a completely new sentence from the destroying the opponent field. And if it isn't considered a cost, then would i be able to discard Goldd for lightning vortex and be able to special summon Goldd?

Also on Karma Cut it reads "Discard 1 card from your hand. Remove one monster...". Would this also be considered be a cost even though a period separates the two sentences? ---iMajo 08:26, March 12, 2010 (UTC)