Most copies, however, are worth significantly less
Now that I think about it, I remember playing against a Dark Tyranitar (I know it's not the good one but I was in Seniors remember) deck during that same Nationals from the intro and watching him power up Second Strike in just two attachments with this card
SE Secret Rare QCSE Quarter Century Secret Rare DPH Gendamoore X FIRE Level 8 [ CyberseSynchroTunerEffect ] ATK 2000 DEF 2800 1 Tuner + 1+ non-Tuner monsters If this card is Synchro Summoned: You can Special Summon 1 Level 4 Cyberse monster from your GY in Defense Position, but negate its effects, also you cannot Special Summon for the rest of this turn, except Cyberse monsters
UR Ultra Rare Despian Comedy X DARK Level 1 [ FairyEffect ] ATK 0 DEF 2000 When your opponent activates a card or effect that targets a face-up "Despia" card(s) you control (Quick Effect): You can discard this card
Note the semi-colon after the words "End Phase." That means that banishing herself is a cost, so Elven Incantation won't stop this because she won't be on the field when the effect resolves