Recursive 2/1s Magic design is littered with recursive 2/1s, usually 1-drops, that return themselves to play for a nominal fee plus a small prerequisite (typically another creature dying)
For 2 mana, you get a 2/1 that flips the top card of your library every upkeep, adds it to your hand, and makes you lose life equal to its mana value
More Affordable Rates Typically, you will pay less than it would cost to schedule the same items under your homeowners policy
Basically, The Filigree Sylex doesnt really change anything in Modern because Ratchet Bomb already exists and the cards are so similar, but it is more or less guaranteed to see play in Modern as a very, very slightly upgraded version of Ratchet Bomb
C Common Mansion of the Dreadful Dolls X SPELL Field When this card is activated: You can add 1 "Gimmick Puppet" monster from your Deck to your hand