This leniency can be advantageous for collectors looking to maximize their cards resale value
Yes, they can still hard-cast their spells even if you Trophy them off Tron
Special Summon from your Extra Deck, 1 Rank 8 Dragon Xyz Monster with 3000 ATK, using this card you control as material (this is treated as an Xyz Summon, transfer its materials to the Summoned monster), then you can attach 1 "Galaxy" monster from your Extra Deck to it
However, I know this cant be a reality, as your opponent needs to know the summoned monsters are within the right scales, so maybe making an effect that allows you to shuffle the face down attack position monsters would be advised
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This Modern-defining artifact basically ensured there was no reason to play any creature-based deck besides the Pod toolbox build