I could give him big stats and scary abilities so that once he got in play he would do "terrible" things, but most of the time the card was stuck in your hand
If typal creatures arent your thing, then Aragorn, the Uniter can be taken in any number of directions, and Lord of the Nazgl turns each of your tricky spells into a deadly Wraith
This opens up a lot of combo options in Commander, with turning into Moltensteel Dragon, pumping him up, then becoming Skithiryx, the Blight Dragon being a particular favorite among many players
The first is that it doesnt actually give you a chance to tap down the creature, meaning you have to either wait for its controller to tap it or use it while the target is already tapped
To avoid scams , thoroughly research the card or pack you want so you know how much it usually sells for