New in E7

Basically I’m new in the game, is there any tips I should keep in mind in terms of farming, ascending, getting equiments , etc.
I like Mercedes and Ras as free units is there any equipment type I should look for them because it works specially good?

Crit chance up + ATK up set is alway good for most units

Read up from the below links:

Ras: https://gamepress.gg/epicseven/hero/ras

Mercedes: https://gamepress.gg/epicseven/hero/mercedes