The rest are narrow, powerful combo pieces like Earthcraft, Dream Halls, Fluctuator, and Recurring Nightmare
Whether or not this card should see play would depend on the specific deck and strategy, but it could be a situational inclusion for decks looking for extra creature recursion options
Uncommons (U) introduce more specialization and complexity, often signaling key strategies
While is surely a steep mana cost, you get three impactful keywords (trample, vigilance, and haste) on a 7/6 body and a massively powerful triggered ability
Dinosaurs of the Sun Empire (Red-Green Dinosaur Stompy) : Summon gigantic Dinosaurs to crush the opposition, supporting them with ways to make more mana or break through blockers