Dbol is used to kickstart a long ester compound like test Enth, it will give you immediate results before the test works. Also, it can be used at the end of your cycle to bridge up to PCT as the half life is short.

Yes Dbol is good with test e and yes it's hard on the liver, a liver support would be required.

Cut to 12-13% then do a bulk of at least 3500cals while on. Doing cardio while on is hard as your pumps (calves) might be rough and you'll get winded easier.