The farmable monsters are perfectly fine , but I don ' t regret doing my pulls . It ' s a gamble , ofc , but it ' s very likely that you ' re going to get something useful . Check the most recent tier list for some guidelines on which mons are good , a tier A or higher is usually worth building unless you have another mon that fills the same niche with the same element , but you ' ll get a better idea as you progress . Take a look at my ' how to spend your astrogems ' guide . The basic idea is that you keep a certain baseline of gems can be 1 k since you ' re a beginner , I keep 2 k myself and whenever you go 600 gems above your baseline you may do a pull if you want . That way you still have a nice reserve of gems to spend on stamina . And about progression , just Auto 20 x the most recent stage that has Exp bonus on it and your mons are able to auto . When they have leveled enough , progress as many stages as you can and repeat . If they get stuck at max level , you can probably farm some starstones and gold and perform an Ascension . Oh , and keep an eye on elemental weaknesses . You might need to level up at least a couple of reserve mons to account for that depending on the stage you find yourself at . Like someone else already said , water Seiren and wood Mona are your friends .