well when i was at that level, i decreased my deck to as small as possible and i added in
3 rush recklessly and 3 sonic chicks. use the sonic chicks as your only monster and dont
fight his stardust, run away from it. keep going on and use the turbos when needed and
eventually you will win

get 3rush cards the save 2 or 3 on the last lap then use them near the finish line

Get Better Cards

have 3 rush cards and 3 speed down use the three at the last lap but first you need to be
in the half of the stadium

get three rush recklesslys and lvl downs

i beaten the game by those spell cards where a pig is in it. and i just used other cards
besides Sonic Chicks