This has a passable baseline and the useful artifact type, and it can maintain relevance once you reach the late game
Maybe in another 20 years it'll drop to uncommon

Amaranthine Wall Avacyn's Memorial Barbed Servitor Bladed Battle-Fan Blightsteel Colossus Blitzwing, Adaptive Assailant Caduceus, Staff of Hermes Captain America's Shield Celebr-8000 Celestial Armor Colossus of Akros Creepy Doll Darkmoss Bridge Darksteel Axe Darksteel Brute Darksteel Citadel Darksteel Colossus Darksteel Forge Darksteel Gargoyle Darksteel Garrison Darksteel Ingot Darksteel Juggernaut Darksteel Monolith Darksteel Myr Darksteel Pendant Darksteel Plate Darksteel Reactor Darksteel Relic Darksteel Sentinel Diamond Pick-Axe Drossforge Bridge Eater of Virtue Eldrazi Monument Endurance Bobblehead Giggling Skitterspike Goldmire Bridge Hammer of Nazahn Hammer of Nazahn Iconic Shield Inspirit, Flagship Vessel Kaldra Compleat Krang, Utrom Warlord Lotus Ring Manhole Cover Manor Gargoyle Mistvault Bridge Mithril Coat Monument to Perfection Myr Matrix Necron Monolith Nutrient Block Paladin Danse, Steel Maverick Razortide Bridge Rustvale Bridge Salvation Colossus Shadowspear Shadowspear Shield of Kaldra Shuri's Fabricator Silverbluff Bridge Skyclave Relic Slagwoods Bridge Soul of New Phyrexia Sparkhunter Masticore Stolen Stark Tech Stuffy Doll Super-Adaptoid Tanglepool Bridge That Which Was Taken The Book of Vile Darkness The Fire Nation Drill The Mind Stone

It wields a Sword pretty well too
In practice, Rhys often works best when he isnt sitting on the battlefield for longkeeping him mostly in hand and striking at the perfect moment is the key to getting the most out of this commander
So I guess you could say that Ive been flirting with MTG for decades