In 99% of cases, the extra mana we save from casting Arcane Signet instead of Commander's Sphere will be wasted, I'd rather spend the extra mana now and get a card later
The day/night mechanic didn't make it into the set, but a key component of it would become the backbone for the Werewolf mechanic
Thats because almost all of the cards featured are Enchanted Rares which share similar theming, with the cold, snowy theme echoing the Winterspell sets story
Anvil of Bogardan is on the Reserved List, and it looks like it plays quite well with all these fun new madness cards
The lore on each version of this card is different, but the full art version is a beautiful depiction of the Setessan city's lack of walls with the Nessian Forest in the background
Vanguard also scales nicely with other buffs effects but his real area of expertise is equipment