The largest Dinosaurs that you want to cast are between six and eight mana, which you can easily get to in the first few turns
That has a point with Wonder, you have to agree that its nice to grant flying to all of your beatsticks
What makes the card not only playable but good, is playing it, gaining the life, and then giving it away to some unfortunate opponent
The main set has 204 cards, and were expecting 18 or more Enchanted alternate art cards, which have secret numbering above 204
Today, gaining tapping and gaining 5 or 6 life for each time in Commander it's not as strong with its 40-life start, and there aren't as many of these running around to abuse the table with 4 in each deck, and there's not the obvious Elf deck power for most multiplayer tables where you usually had one, and sometimes two
Obviously this card wants to be in decks with Edgar Markov, or any of the versions of Olivia Voldaren, heck even Anje Falkenrath can find a home for this vampire family member