Because of the amount of cards Professor's Research draws up, players not only use it frequently but usually carry more than one per deck - almost no other supporter is as effective at giving players access to their cards
the Pok Pad from Ascended Heroes has already shown there is more interest here than many would have assumed
Therefore if Leyline of Singularity is on the battlefield, all those drago-tokens are immediately affected by the Legend rule
Copies with lower grades still sell for several thousand dollars, but most sellers won't get lottery money for their Lugia
Ok, that's a lot of words, so let's do a tl;dr - on attacks, you can make a Katamari Damaci ball
However, I saw that they have been authenticating more autos as of late, so I decided to submit another submission of 9 cards (Fuse, Ariga, Arita, and Harada) to see if any of these will be graded this time