Scry is a workhouse mechanic designed for card-smoothing, whereas Surveil is a subtle, multipurpose mechanic that does what Scry does but also enables all sorts of shenanigans (only some of which have been spoiled at the time of writing)
When Sisay got her greedy little hands on it, she had to charge four mana
It's better than a Rampant Growth as it ramps the land, and you can get a Snow Covered Basic or something like, say, #1 below if you are feeling frisky
Each round then consists of a best of 3 match with a 50 minute time limit
Even though Lurrus is a clear winner, Underworld Breach is at least deserving of a shout-out
Not only that, it deepens the value of Food payoffs like Greta, Sweettooth Scourge and Peregrin Took by letting me mingle them with existing sacrifice synergies like Blood Artist and Morbid Opportunist