Hargilde, Kindly Runechanter is a rare Legendary Creature — Human card from Universes Within (SLX), collector number 5. Current market price: $0.36, TCGplayer market prices via Scryfall.
{T}: Add {C}{C}. Spend this mana only to cast artifact spells or activate abilities of artifacts. Partner—Friends forever (You can have two commanders if both have this ability.)