When they enter the battlefield, if you cast it, search your library for up to five Dragon cards not named Tiamat that each have different names, reveal them, put them into your hand, then shuffle. Its nice to draw cards, and drawing five powerful Dragon cards is even nicer
Now you have an opportunity to show her that they really could have been worth a lot of money one day
Esper Charm could destroy enchantments, which Sultai Charm can also do, but it also hits artifacts
The English equivalent (Obsidian Flames Charizard ex SIR) trades at roughly $15-20, making the Japanese version 15-20x more valuable
(It's an artifact with " , , Sacrifice this artifact: target creature you control explores
Do any of those gold cards make the list of the 15 most valuable Stronghold cards, though