I battled through the incorrect spelling and bought a fair few Armoursmiths on the Splinterlands market several months ago, and just kept them as singles, and ATM that turns out to have been a pretty decent decision...the return you get on single cards is much better than for combined cards (trust me I've got a Level 8 card and i had to lower the price twice to rent it).
However people have been snapping up the L1s for 3.5 DEC a day each....
People lower down the leagues are going NUTs for these cards - I guess it's because it's one of the few cards that STARTS with an ability from the outset.. repair, and combined with Tyrius who gives everyone plus one shields, and the Divine Healer this could be a pretty useful bronze combination.
I'm not sure when the saturation point will come, but I've already got about 100 rented out and I've got a few left still to rent out!
Not bad for a card that cost be around $0.03 cents