Forum:Corrupted Keys query

So I was reading the wording on Corrupted Keys and noticed the tokens it generates has a simple activation condition of Target 1 Face-up Monster you control; and at the end of the card text, has the following "When that face-up Xyz Monster leaves the field, destroy these tokens."

Would this mean that if I activate Corrupted Keys to target an Xyz monster, and then chain Compulsory Evacuation Device, resolving, first the monster is returned off the field, and then the tokens are summoned, and since the tokens being summoned happens after the Xyz monster leaves the field, the tokens will remain on the field? If so, what does this mean for the tokens ATK now that their Xyz monsters current Attack has been hidden back into the Extra Deck, is the ? treated as 0 as there was no 'current' attack on a monster no longer present when the tokens are summoned? Shane47 (talk • contribs) 12:53, June 21, 2014 (UTC)