Forum:Greed Quaser

Please help me make a deck around Greed Quasar. I also dont really get its effect. When it destroys a monster does it get + 1 level up or + whatever the monsters level is? And does it stop at level 12? Please help me make a deck. It should be around fiends but other types are OK. Thanks for the help.

http://images1.wikia.nocookie.net/__cb20090625035002/yugioh/images/c/cb/GreedQuasarCRMS-EN-ScR-1E.png