The key parts of an overrun are mana value, trample and lethality
Because you are creating cheap, 1/1 tokens, you can add more sacrifice effects that most Assassin decks aren't fond of, giving you targets for Village Rites or Goblin Bombardment
This special Dueling Heroes Tin gathers the most famous monsters from the past as Quarter Century Secret Rare cards, it also contains extra-large Mega-Packs with some of the most popular cards
While it is possible to spend extra money on extra Pack Hourglasses, additional resources, or cosmetics, its not essential for making progress with the game
95 Tarot sleeves for 120 x 70 mm cards
I could also see this as a sideboard option in a similar role that Otter Ral plays in Izzet decks