The important thing to note here is Soaring Lightbringer doesn't need to attack for you to get that token
Elf decks in EDH already have lots of token making, and another anthem is welcome
My biggest miss in the list of best cards from Modern Horizons 3 was Phelia, Exuberant Shepherd, which turns out to be pretty nice in an aggro shell, and this card may very well go in that deck
Crucible of Worlds is a must-have for any land-based MTG deck, particularly those that rely on land reanimation like The Gitrog Monster
Although it may seem repetitive, I think it would be a fun allusion to that original set, and a powerful upgrade for white, if Reality Fracture just gave us a white version of the card Counterspell
Control used to get away with things this slow or mana intensive, now adays you are going to really struggle beating planeswalkers and Titans with your Capsize plan