A simple card giving me two immediate thoughts:
- This is going to be one of the best green uncommons in limited.
- This card could have easily read: "When Briarpack Alpha enters the battlefield, you may have another target creature you control get +2/+2 until end of turn." This would have made it much worse. Instead, we get the much more powerful version seen above.
It's also important to note that flash is very relevant in werewolf decks. Because Briarpack Alpha has flash, you can hold back on spells during your turn, allowing your werewolves to transform, and then play the Briarpack during your opponent's turn, bringing the beats.
Put this in a werewolf deck. Specifically, put this in a werewolf deck that features both Village Ironsmith and Kruin Outlaw to get maximum value. First strike and double strike are good, but combat tricks make them even better because it throws off all kinds of power & toughness math, usually leaving your own creatures untouched.