That's because we're used to the idea that this is a reasonable price for a creature this size
It can also be used defensively to keep attackers off your face or to reset things with counters on them
Its a great Eldrazi Commander, and for big chonky colorless spells, too
WUBRG decks are always a little tricky to judge if they're not blatantly powerful right out of the box, and because the theming of this deck is so cool, it feels disruptive to try and make upgrades to it, so it's almost a case of being a precon that you shouldn't upgrade, but yet it desperately needs it
I just think Rydia's Return is overcosted and not good enough, though it does seem good out of the sideboard for slower matchups
The truth about Ursula - Power Hungry is that she can tank hits, she'll draw you a card, and she can Quest for 3