No problem the least I can do is give a proper reply to comments!
There's no static cards (yet). SRs and URs have a chance of being generated with unique names based on their card art. Refining can either decrease mana cost, remove negative effects, or increase attack and resistance, so maybe you got one of the other refine bonuses.
I think one of the charms of the game is how it sometimes generates cards that seem very well designed even though they are completely random.