Welcome to the club!
The first time I tried lvl. 13, I used the level 12 team..... Dark Lilith obliterated them!!!!
I would recommend reading this thread all the way through, from beginning to end.
I know my opening paragraphs seem like alot, but there is a reason for all those words.
Plus, others have already discussed what is needed and any possible substitutions.
GOOD LUCK!