234 cards found matching energy cost is at least 5

Scrapyard Champion
Scrutinizing Sergeant
Sett, Brawler
Shadow Assassin
Shadowblade Lurker
Shard of Undoing
Shen, Leader of the Kinkou Order
Shen, Scourge of Shadows
Simian Ancestor
Singularity
Sivir, Ambitious
Sky Splitter
Solari Chief
Soulgorger
Soul Shepherd
Spectral Centaur
Sprite Burst
Sprite Queen
Stargazer
Starhound
Stormbringer
Stormclaw Ursine
Swain, Visionary
Syndra, Transcendent