Much like Up the Beanstalk of Modern and current Standard fame, Yshtola only cares about the printed cost of a card, not how much you actually pay for it
I expect that well see it again another time in the future
The last Trainer card, and the one you can most easily replace, is Red Card
#8 Here's a pretty ridiculous card that clearly telegraphs the "get lots of lands into play" very explicitly
Carnivine Cresselia Garchomp Gastrodon Giratina Glameow Hippopotas Manaphy Rhyperior Rotom Spiritomb Staraptop Space-Time Smackdown Museum 3 Although you only need to collect four cards for this secret mission, theyre all two Gold Stars with rainbow borders from the Dialga pack, making them pretty hard to find
Not the best thing ever, but it can give you a decent variety of options when it comes to choosing spells