This is awesome, thanks for the share. I just used this to find Reckless Impulse, I remembered Wrenn's Resolve but couldn't remember the earlier one! Will be using this for sure down the line.
Curiously, as another test [[Thran Dynamo]] pulls up [[Ancient Den]] first and then [[Azorius Signet]]. I would've expected [[Worn Powerstone]] and similar straight up colorless rocks first. It's even worse at MTGAssist though, which shows [[Geode Golem]] (??), [[Sol Grail]], and [[Honor-Worn Shaku]] (???) first.