172 cards found matching has might, might is at least 5

Towering Pairofant
Trove Golem
Tryndamere, Barbarian
Udyr, Wildman
Ultrasoft Poro
Undercover Agent
Undertitan
Vanguard Attendant
Vex, Cheerless
Vex, Mocking
Vicious Snapjaws
Vilemaw
Vi, Peacekeeper
Volibear, Furious
Volibear, Imposing
Voracious Gromp
Walking Roost
Warwick, Hunter
Whiteflame Protector
Wraith of Echoes
Xerath, Freed
Yasuo, Remorseful
Yeti Brawler
Yi, Honed