With so many Monsters that can activate devastating effects, forcing them to go facedown is a great way to snuff out your opponents plays
Such is the allure of building for casual commander
You can only use this effect of "Sonic Tracker" once per turn
The huge upside here is sacrificing lands like Fabled Passage, playing it from the graveyard, and pumping creatures on each of your turns

Alenni, Brood Recruiter Alessos and Pras, Acrobats Alex Wilder, Runaway Amateur Hero Amazing Spider-Girl Amazing Spider-Man Ant-Man, Colony Commander Ant-Man, Elusive Avenger Ant-Man, Reformed Rogue Ant-Man, Scott Lang Anti-Venom, Horrifying Healer Arachne, Psionic Weaver Araa, Heart of the Spider Argyr, Tidal Spinner Astonishing Spider-Man Beast, Erudite Aerialist Big Bertha Black Bolt, Inhuman King Black Panther, Claws of Bast Black Panther, Hope Enduring Black Panther, Most Dangerous Black Panther, Vanguard Black Panther, Wakandan King Black Widow, Agile Avenger Black Widow, Daring Operative Black Widow, Deadly Hunter Black Widow, Double Agent Black Widow, Intel Expert Black Widow, Natasha Romanoff Black Widow, Super Spy Blue Marvel, Adam Brashear Borys, the Spider Rider Brave Brawler Brawn, Amadeus Cho Bruce Banner Bucky Barnes, Eager Ally Captain America, First Avenger Captain America, Liberator Captain America, Living Legend Captain America, Skybound Captain America, Steve Rogers Captain America, Super-Soldier Captain America, Team Leader Captain America, Unbowed Captain America, Wings of Freedom Captain Mar-Vell, Space-Born Captain Marvel, Apex Avenger Captain Marvel, Earth's Protector Captain Marvel, Shooting Star Chase Stein, Runaway Chizak, Apex Arachnosaur Cirina Bargainspinner Cloak and Dagger, Entwined Colleen Wing, Street Samurai Colossus, Steel Stalwart Contract Hero Cosmic Spider-Man Council of Reeds Cren of the Spider Brood Cren, Undercity Dreamer Crystal, Inhuman Princess Daredevil, Fearless Fighter Daredevil, Man Without Fear Darval, Whose Web Protects Darwin, Adaptive Mutant
