Aurora Dreaming Guardians ability enables the card to be placed on top of other cards also named Aurora, if the player is able to pay the cost
Putting 10,000 +1/+1 counters on a creature, or just dealing 10,000 damage to your opponent, is pretty much guaranteed to win the game
The Urza melded planeswalker was probably the biggest hit of the demo decks (although the decks as a whole were well received) and helped green-light The Brothers' War as a premier set
One of the Dalmatian cards, Lucky - the 15th Puppy, is a great card that adds extra cards to the player's hand if luck is on their side
If competitive play appeals to you, explore tournament formats that reward consistent decision-making rather than fast volume alone
As mentioned, you could pair it up with Sugar Rush Speedway, but there are also cards like Flotilla, Institute of Technology, or Rattigans Party that all get you lore each turn