So I cant reply on steam without being your friend, but my cov 13 win was with awoken waxen where I use awoken to tank hits for an army of high dps wax guys.

Additionally, so far Ive got each covenant unlock using a unique pairing and Ive got one using each awoken pairing.

If youre having difficulty, you can restart a run that gives you trash cards from the beginning but all my wins come from just building a strong senergy around the starting 5 cards or a OP rare card picked up in the run.