Some of these are exact clones (Balduvian Bears, Bear Cub, Forest Bear, Runeclaw Bear), while others are close enough, like how you pay 1 more generic mana for 2 more power with Alpine Grizzly or 2 more mana for a Golden Bear
Its built to help you format your custom cards like a real Magic: The Gathering card: mana cost, type line, rules text, power/toughness, and all the layout choices that keep your creation readable
This card is destined to make an impact in Blastoise decks as well as other decks that discard Energy with no way of getting it back already built in
Later on, it's a 4/5 that also makes your creature lands awesome
Set building : Opening multiple packs (or an entire booster box) gives you a wide variety of cards quickly, which is great for building up a set