If you are aggressive, then getting something out of the way for a bit should give you that window to close the game
A single Surgical Extraction isnt going to be too effective, so Id steer clear of this one outside of blue decks, but its a great option for them, especially because the harder graveyard hate messes with Snapcaster Mage
She helps Garnet, Princess of Alexandria, ensuring she always has plenty of tasty lore counters to devour, and with Terra, Magical Adept she can form an infinite combo
Sacrifice after III.) I - The Ring tempts you, then each player mills cards equal to your Ring-bearer's power
Weirdly, setting up the Shift target Clarabelle Contented Wallflower makes the big Clara less likely to make a big impact