With this card still being useful, it can hinder decks to the point where some of their main plays arent able to be used because their important cards are banished from their Extra Deck
You can also win if your opponent has no basic Pokemon to move to the Active area, or if they have no more cards to draw at the start of their turn
Collectors who want the set buy singles
If you flip a second Illuna, you can add it to hand and then mutate it onto the first one for a double trigger (and no legend rule!) Its harder to see exactly what to do with Vadrok, Apex of Thunder , since one of the best spells in Jeskai to recast Deafening Clarion will also kill Vadrok unless you mutate it under something with better stats
C Common Beacon of White X SPELL Equip If you do not control another "Beacon of White", and you have 3 or more "Blue-Eyes" monsters in your GY: Target 1 of them
This gives you a free spell to cast from your opponent's deck and that is simply never a bad thing, all while pumping up his loyalty