That's what I'm afraid of. I've already played under one GM who, after approving the Shadow Creature template and explicitly being pointed out that nothing short of True Seeing could automatically foil it, then arbitrarily stuck True Seeing on every single monster we fought for the rest of the campaign, starting at level 5. It was the single worst D&D experience I've ever had in my life, and if you're willing to casually hand out my Kryptonite to force social interaction with prospective party members, that honestly makes me real worried what you'll do when actual combats happen.