I use all stars and uppers combo in DTs.
im quite happy with it. kills a bit faster than uppers monty
but on a budget go with Rescue + Hugo or Montana + Hugo or Uppers + Hugo
then save for the big uppers
prince jr 1k
ottavia and spaghi are also options. but the key cards are mona and prince coz they can destroy weak decks
that will work. hugo can also get in there. but the key card to save for is alec
all 3 decks should get you top 50 or even top 25 on a regular basis