Cards like Lilo, Making a Wish and Stitch, New Dog were just two of the many cheap threats packed into the amber/x aggro shell, with the purpose of getting characters into play as fast as possible, and then using some number of Lanterns or shifting using Stitch, New Dog to get Stitch, Rock Star into play ahead of curve
Cathars' Crusade - Turns your Hero tokens into champions
Ideally, play him before using a discard effect, and you can activate the effect the same turn by Singing Sudden Chill with Ursula Deceiver or Diablo Devoted Herald
Portent of Calamity For five mana I can drop Omniscience if its in my top four cards on top of drawing three cards
Drawing cards from the bottom of your library is exactly the same as drawing from the top, except that you take the bottom card of your library and put it into your hand
We're talking about 'bounce' decks, as the community calls them