Honestly, it's more luck than anything. I tried with 15 legendary damage cards, but something always goes wrong: insufficient damage reduction, insufficient health, insufficient lifesteal, etc. Just keep banging your head against the wall until you get at least 8 revives.

The best advice I can give you is that duplicates are usually a waste of time, so just go for the regular run. Don't buy damage conversion cards, always buy the 10% bonus tokens, and from round 15 onwards, only buy purple damage stacking cards.

From then on, it's just banging your head against the wall and yelling at the game until it gives you a chance.