Eureka Seven is a weird one, as I've seen quite a few of people saying how weak it is (including clickbait articles), and how it's a real mecha series meaning it doesn't have that many feats. When in reality you have Nirvash triggering a Seven Swell which reshapes the landscape by the second episode alone and this only its third best feat in Spec 1, out of 2 more even more powerful forms. To say nothing of Bascude Crisis creating an explosion of water that reaches thousands of miles away, fleets of ships 100s of m long with a command ship 1.5km long, THEEND wiping out armies of kaiju, Project the Scub Coral altering local physics, the Corals covering the Earth in a giant layer, Towers being several kilometers tall, the Limit of Questions being a threat to the entire material universe and more. Yeah it's weak compared with stuff like Gurren Lagann and GaoGaiGar, but that's not exactly a fair comparison to call something weak now is it?