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

Sandshifter
Sandstone Chimera
Scrapyard Champion
Scrutinizing Sergeant
Sett, Kingpin
Shadow Assassin
Shadowblade Lurker
Shadow Watcher
Shen, Leader of the Kinkou Order
Shen, Scourge of Shadows
Simian Ancestor
Sivir, Ambitious
Soulgorger
Spectral Centaur
Sprite Queen
Stalking Wolf
Starhound
Stormclaw Ursine
Swain, Visionary
Syndra, Transcendent
Targonian Visionary
Tasty Faefolk
Thousand-Tailed Watcher
Tibbers