Soul of Windgrace is an especially interesting addition, as its triggers are very reminiscent of the Titans from M11, but it goes considerably further by offering 3 extra abilities that can pad your life total, cycle through cards, or protect itself by spending mana and discarding lands to the graveyard
The payoff just isnt super high for building around it
Sure, these two cards arent legal in Commander, but so is the entire deck
Kefka's Tower (Bolas's Citadel) I thought for sure Kefka's Tower would be printed onto Command Tower, but it looks like Wizards of the Coast wanted to avoid Commander-only cards, which is welcome
Reid Duke was doing crazy things with the card on the Eternal Weekend stream, and I suspect most Vintage mages will be looking to grab a few copies of this in the coming days
It pays to extra to be careful these days to prevent collectors from becoming victims anytime soon