234 cards found matching energy cost is at least 5

Garen, Commander
Garen, Rugged
Gearhead
Gentle Gemdragon
Gentlemen's Duel
Glasc Mixologist
Grand Strategem
Guardian of the Passage
Harnessed Dragon
Horns of the Dragon
Hostile Takeover
Hwei, Brooding Painter
Iascylla
Icathian Rain
Illaoi, Prophet of the Great Kraken
Imperial Decree
Imposing Challenger
Inviolus Vox
Irelia, Fervent
Ivern, Friend to All
Ivern, Nurturer
Jae Medarda
Jaull-Fish
Jax, Unmatched