The higher the rarity of the cards in the pool, the more the wonder pick will cost
The bonus of GY sending is that his Shaddoll tends to be biased towards the main fusion destination, so there will be a lot of light or dark
It has several tutorials that will show you how to play in a practical way, each one more complex than the previous one
And if youre sitting on any of those OG Mega cards from the XY era, you might want to consider grading them or offloading them while demand is heating up
Add in additional equity with cycling combos with cards like Drake Haven, and we have a card draw spell that will see ample play in Standard
Other than Richard Garfield, who wasn't working on Magic at the time and liked the innovation of the split cards, Bill and I were the only fans of the split cards at Wizards