Although armor and auras can be similar, the brains required to use them are worlds apart. Zilan, Makindi auramancer Illustrated by Howard Lyon Standard Not Legal Alchemy Not Legal Pioneer Not Legal Historic Not Legal Modern Legal Brawl Not Legal Legacy Legal Comp
The commons and uncommons target Limited play, many of them being role players in Modern, with cards like Path to Exile, Electrolyze, and Grapeshot being examples
Some have it written straight on the card while some need certain conditions to activate it
Bootleggers Stash has been one of the two biggest chase cards of Streets of New Capenna so far
Dungeon is a card type seen only on nontraditional Magic cards
Whenever you activate an ability of an artifact or creature, which of course can't be a mana ability, you copy it if a permanent was sacrificed as part of the activation cost