Sacrifice after III.) I - This Saga gains ": Add ."II - This Saga gains ", : Create a 0/0 colorless Construct artifact creature token with 'This token gets +1/+1 for each artifact you control.'"III - Search your library for an artifact card with mana cost or , put it onto the battlefield, then shuffle
Like most Magic: The Gathering cards, the value of Dimir Signet depends on a few consistent factors: its rarity, the printing and finish (regular or foil), its physical condition, and the set it was printed in (Aetherdrift Commander)
Theft is a key part of the blue/black Dimir decks (though it has spread to other colors) and is a very fun, if notorious, way to play Commander
BGS (Beckett Grading Services): The Pursuit of Perfection Beckett is another highly respected name in the hobby, known for its meticulous grading process and premium presentation
My final note here is that blink strategies arent going to be for everyone