Generally, it's not simply because they're the best MTG cards
Whoever decided to feature Ampharos as an ex-Pokemon in this set made an incredibly good call
So the burn mode is great even if it is pretty embarrassing compared to Boros Charm
40 years?) And, just as with stocks and real estate
Not having to play the auras directly beforehand makes it incredible and incentivizes you to get it in play and attacking as early as possible
Suggested cards Scroll Rack, Congregation at Dawn, and Sylvan Library to curate your topdeck Goblin Bombardment and Ashnod's Altar for efficient egg-cracking Etali, Primal Conqueror, Pathbreaker Ibex, and Ghalta, Stampede Tyrant to make those eggs worth the mess Mirror Entity is a spicy include that lets all your eggs hatch at the same time Atla doesn't always hatch the same beast, but when she does - your board state evolves from "cute petting zoo" to "apocalyptic zoo breakout" very quickly