Well a safer stack (if you are going to mix illegal AAS into the mix) would be Test Prop with Epistane. The test is equivalent in all areas to the Dbol at equal doses and is not hepatoxic. That way you avoid running two 17aa substances simultaneous.
BUT... Since you asked about Dbol/Epi... The dbol is wet and aromatizes moderately and because of that, it will be more suppresive than Epi. It will warrant an AI or Serm for gyno at about 30mg+ in most... However, Epi (acting similar to all DHT derivatives) will act to compete with the influx of Estrogen from Dbol. Dbol always flares pre-gyno for me at 30mg daily. So keep a close watch. Personally, I like to avoid supressing Estrogen unless sides appear. Letting all the hormones escalate in a similar ratio seems to promote better growth and well being. Epi will be less suppresive than the Dbol, so that won't matter. DHT derivatives only supress through androgen pathway. Dbol supresses through DHT AND Estrogen pathway in the HPTA.
Dozing might look like this...
Wk1 20mg Dbol, 20mg Epi
Wk2 20mg Dbol, 30mg Epi
Wk3 30mg Dbol, 30mg Epi
Wk4 30mg Dbol, 40mg Epi
Proper PCT with SERM followed by AI and Cortisol control to prevent rebound
This is NOT what I would ever do. I prefer Test Prop to adding multiple orals. I'm currently using TP 50mg ED and HDrol 50mg daily with 6 caps 11-oxo. I have 16 years experience with AAS and 7 years with pro hormones/designers, dating all the way back to the first Androstendione 50 from OSMO in 1997.