They work particularly well with Kishla Skimmer and other draw a card LTG effects
To fill up your graveyard, Celes, Rune Knight and Mog, Moogle Warrior arrive with potent effects that get creatures into your graveyard, with the Celes also being her own wincon and value engine with her ability to grow your whole board every time a creature enters from your graveyard
If you control no monsters: Add 1 Level 6 Zombie monster or 1 "Call of the Forgotten" from your Deck to your hand
The following rules are applied to a Battle City tournament: If a Duelist loses a Duel, that Duelist is eliminated from the tournament and must surrender their Deck's best Monster Card to the winner, who must add that card to their Deck
Some of the more sought after (read: expensive) cards on this list are: The original five Phyrexian Praetors Ragavan, Nimble Pilferer Atraxa, Praetors' Voice Skithiryx, the Blight Dragon The Brothers' War The Brothers War was the first official printing of serialized cards, and it was hot out of the gates with all 63 of the cards on the Retro Artifacts bonus sheet included in their sketch printings
This means that cards that make combat difficult like Silent Arbiter or just outright negate damage like Fog and Spore Frog can throw a wrench into any sliver players plans
