That tension balances somewhere between Scion being a powerful tutor general and Ur-Dragon allowing players to have fun with less repetitive game play
If you're playing this deck, you're playing it for this card (never mind your love of the Human creature type!)
However, it is important to mention that you are not really gaining any tempo from this trade, since when you take a card from your opponent's hand, they are never spending their mana to cast it (unlike a Counterspell, for example, which has a weird Time Walk effect on the opponent, since you not only stop the spell but also force your opponent to spend mana attempting to cast it)
Fun Ranking: Want to Build Fumulus, the Infestation I love when Wizards makes a commander that cares about random creature types
Fits the idea that these guys would be what evolution would take hounds or goats in a different land (and maybe with some magic tossed in)
Each booster includes cards with special treatments that are themed around a given set