I will get a Bibliography put together and add in citations to sources in the post
The Luffy Gear 5 Comic Parallel trades at 648,000 (~$4,320) and prices have appreciated, not declined, since launch
Drown in Dreams If you have a big or infinite combo engine, Drown in Dreams is a finisher
Undying (When this creature dies, if it had no +1/+1 counters on it, return it to the battlefield under its owners control with a +1/+1 counter on it.) Note: The price of this product may fluctuate daily due to changes in market demand and consequently, the product is only available to order between the hours of 11:00 to 23:00 AEST
You want to focus on big, impactful creatures that really shake up the board state upon entering the field, and who can continue to disrupt the game as long as they are on the field (or, possibly, by coming back from your Graveyard again, and again, and again) Protecting Yourself from an Early Grave, and Knowing Your Match-ups Reanimator decks also dip into forms of spot removal
Its very difficult to remove, and drains your opponent for 2 when it dies (usually 4, including the creature that was sacrificed to pay the ward cost)