This is a good example of a decent, middle-of-the-road Limited uncommon. It doesn't do much when it hits the field, but it can be very versatile, depending on whether you're winning or losing. If you're losing, it can be a wall or be buffed to trade with one of your opponent's big things. If you're winning, it can swing in for a sizable amount of damage with a mana investment. It's also not bad if you're topdecking because it gives you a place to sink that unused mana every turn. However, this card is not that great if you've got cards in hand or if you're trying to win a race. It's a good card in certain situations, but a bad one in others.
Cons: Requires mana for versatility