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

Mountain Drake
Nasus, Ascended
Nasus, Guardian of Knowledge
Needlessly Large Yordle
Ocean Drake
Ornn, Blacksmith
Peak Guardian
Perched Grimwyrm
Petty Officer
Playful Phantom
Plaza Guardian
Poppy, Defender of the Meek
Poppy, Paragon
Rek'Sai, Swarm Queen
Renekton, Rage Fueled
Rengar, Trophy Hunter
Revna the Lorekeeper
Rhasa the Sunderer
Rift Herald
Riptide Rex
Ruined Rex
Ruin Runner
Sacred Protector
Sai Scout