You can also work your way around giving Yshtola Curiosity, so it hits for 2, you draw a card, cast the card youve drawn, and continue draining your opponents out with more triggers
The Urza's Saga version will set you back about $1000 for a played copy, whereas a played World Championships copy can still be had for under $300
It's partly because of the Signer Dragon/Earthbound God ancient conflict, but many of the Dark Signers have personal reasons for wanting to confront their chosen Signer independent of that (though it's implied at least some of the Earthbound chose their Dark Signers explicitly for said connections)
You can only use this effect of "Rescue Ferret" once per turn
[Recommended for the following players] TCG players Yu-Gi-Oh
You can add a mana to drop all abilities as a combat trick or to give your dork indestructible too