Technically there were cards with cumulative upkeep in Modern because of Coldsnap , but most of the good ones are looking for the number of age counters for some beneficial effect, making the interaction less valuable
Sensei's Divining Top, Mystic Forge, and any cost reducers that make Top cost like the Herald or Sculptor, let you draw your entire deck by continually putting Top on top of your library and recasting it with Forges ability
Being an enchantment is pretty cool since it's harder to remove than a random creature, plus the actual effect of preventing damage helps to stabilize you in the later turns of the game
Wrap Up Slaughter Pact | Illustration by Josh Hass Like Uncle Ben says: With Great Power there must also come great responsibility! MTG has an array of cards that give you an unfair advantage, but you can lose right away
Saheeli, Filigree Master Image Whats great about this card: With the entry of The Brothers War, we are treated again with a lot of artifacts at our disposal