Woot!!! I opened my first Ultimate Chest and received a Legendary card! It's an Aves Sturgis which has the Weapons Training effect right from Level 1. Weapons Training gives this card's attack, up to 3 attack, to any adjacent cards that have no attack.
It's certainly nice to get a legendary card from 2,500 glint spent RATHER than 25,000 glint when buying a guaranteed legendary card from the Legendary Draws.
Cool!