Lorcana has a generous mulligan rule that allows you to redraw as many cards as you want in your opening hand, so take advantage of that opportunity and try to start each game with the best curve possible
If they survive even one turn, they usually start pulling you ahead , big time
Ghost is also great for supporting other cloned creatures, too
I adore playing cards that are obscure, and it helps when the art is equally adorable
Archfiend of Despair Battlebond was a really fun set, and it brought us some great cards like Archfiend of Despair
In rakdos specifically, cards with sacrifice synergies, like Mayhem Devil and Mahadi, Emporium Master, can save you from having to clear out your own creatures while making use of creative ways to create Treasure tokens