I think the issue is, you need way to many cards for Lucario EX to get a 2KHO and when you are able to 1 KHO you'll get 1 KHO too. ;)
Lucario EX needs expert belt, strong energy and the stadium which are 3 cards, then you'll attack for 30+20+20=70 and the following turn for 120 if you draw a...