pokemon fossil set booster box Vintage 1st Edition Pokémon era Pokémon Deep Pocket Monster | A

Every color (along with the multicolored cards) has had a four-star card thus far and I think that's great

Any "as this creature enters" or "this creature enters with" abilities of the copied card will also work

Professors Research in Sword & Shield has the exact same effect, but like Hop is a Supporter card, limiting its use to one turn

Yes, a Magikarp card is the top chase card of this set

Engineer ways to discard creatures with powerful on-play abilities and create a cheaper copy by expending your Blue mana

This allows you to mill a ton of cards, so in graveyard-based decks it's a fantastic way to easily dump a bunch of cards into your graveyard