If you do not want the piece you can re-consign it to the next appropriate auction for a fee of 30%
(A copy of a permanent spell becomes a token.) Whenever an opponent casts an artifact, instant, or sorcery spell, counter that spell
However, you cant look at face-down cards your opponents control, and you dont get to see what your opponent is playing face-down when they cast it
Im upgrading this deck to keep Bright-Palm as the commander, but theres no denying Shalai and Hallar is the better of the two
By sacrificing your own board with it on the stack, and by pre-emptying your opponents yards with anything from a Soul-Guide Lantern to an Author of Shadows, you can simultaneously wipe the board, get a load of EtBs, and slingshot into the lead