Forum:Q about Underworld Egg Clutch

I can't wrap my head around this cards effect. I know the basic thing, that it adds a card, what i want to know is this: If i banish several monsters in one turn, and THEN activate Underworld, do i get to add as many monsters as i banished, or just one? Or if i activate the card AFTER i banish everything, do i still get to add monsters?

I am not a registered user here 78.78.182.108 (talk) 21:06, July 13, 2012 (UTC)