234 cards found matching energy cost is at least 5

Poppy, Defender of the Meek
Poppy, Paragon
Possession
Progress Day
Promising Future
Raging Firebrand
Recruit the Vanguard
Reinforce
Rek'Sai, Swarm Queen
Renata Glasc, Mastermind
Renekton, Brute
Renekton, Rage Fueled
Rengar, Trophy Hunter
Revna the Lorekeeper
Rhasa the Sunderer
Rift Herald
Riptide Rex
Ruined Rex
Ruin Runner
Rumble, Scrapper
Safety Inspector
Sai Scout
Sandshifter
Sandstone Chimera