Adeline, Resplendent Cathar offers the best of both worlds, growing your army and herself every combat
Cards Realm has a virtual booster opening simulator for Final Fantasy: Through the Ages with realistic, rarity-weighted pulls
It isnt hard to reach seven mana in Magic, particularly in control and ramp decks, so getting it out ahead of the curve is going to be a common occurrence
That said, white has so few viable designs in the mana ramp space, theres going to be some risk of that with any new mana ramp card designed for it
I also advocate foils above nonfoils in this plan
Printing new support for underutilized themes is a really cool way to use these Commander precons, but its also good that Wizard of the Coast includes a few spells that look exciting for more mainstream decks