Thats why choosing the correct cardstock weight is a functional decisionnot just an aesthetic one
The control effect won't end if it later becomes a Mutant (perhaps because of the effect of the second chapter ability)
Whir of Invention is also worth mentioning as an option to consider
If this card you control is destroyed by an opponent's card effect while it has material, and is sent to your GY: You can Special Summon 1 "Number iC1000: Numerounius Numerounia" from your Extra Deck, and if you do, attach this card to it as material
and also Petra for writing this article
Meanwhile, I could not help but wonder about the perfect storm that created Gardevoir/Gallade: no suitable Psychic Pokmon to counter with (especially given the +30 weakness), Scramble and Double Rainbow Energy were still legal, some potential counters were rotated out while others were delayed for release, and so on