10 cards where the text includes “reach” and the set is “bro”

A-Thran Spider (The Brothers' War #A-254)
Gaea's Gift (The Brothers' War #182)
Hoarding Recluse (The Brothers' War #186)
Roc Hunter (The Brothers' War #150)
Rust Goliath (The Brothers' War #204)
Skyfisher Spider (The Brothers' War #221)
Thran Spider (The Brothers' War #254)
Titania, Gaea Incarnate (The Brothers' War #256b)
Titania, Voice of Gaea (The Brothers' War #193)
Tower Worker (The Brothers' War #255)

The message was clear to Sorin—time to search for something else.