Attach: Banish two cards with different names from your Oblivion. Your Contender loses one health.
Attached card gets +1/+0 and, " Trigger - Challenge : You may reveal the top two cards of your deck and put one of them into your hand. If you do, your Contender loses health equal to its specific resource cost. Then you may banish one of them. Then put the remaining cards on the top of your deck in any order ."