Because its power/toughness are being pumped up (as opposed to being set to specific values), they are still applied after it has been turned into a 7/7. See ruling #3 for confirmation: http://gatherer.wizards.com/Pages/Card/Details.aspx?multiverseid=198172
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He's cool, but I'm trying to stick with creatures that have activated abilities. Thanks for the suggestion though!
Interesting, I hadn't thought about that approach. If I find this deck isn't that competitive when I start playing it, I'll definitely consider your suggestion. :)