sylveon full art pokemon card V - TG14/TG30 - Brilliant Stars - Trainer Gallery Mx2 / None / 1 Artist Pokemon Sun and Moon Guardians

Scion of the Ur-Dragon offers an easy, repeatable way for you to search out dragons from your deck and put them into your graveyard, which is already a good enough ability on its own for fueling your reanimator cards

The short answer is probably

As a further commitment to the bit, Wizards is releasing three LOTR -ified versions of the famous card Sol Ring (yknow, because the whole thing is about rings )

As these two slots have lots of goodness, I will note that the maximum number of foil-etched Legends Retold cards in a Collector Booster is two

Varina incentivizes you to attack with zombies, so you want big and strong zombies for that, preferably with menace