Mightyena's "Gang Up" Attack says it does 10 X the number of Dark and Metel type pokemon in play. Mightyena is a Dark and Metal type, does that mean his attack will already do 20? 10 for there being 1 Dark type in play and 10 more because there is 1 Metal in play? And if I had 2 Mightyena's in play would the attack do 40? Thanks.