First of all .. in regards to "do you need."
That's so vague.
First of all, how many cycles have you done? What are your stats? What is your training experience? Are you stacking it with anything else?
Prop @ 100mg EOD works well for ALOT of people, especially when stacked with something like winstrol or EQ.
If you are more experienced, then use prop @ 100mg EOD with winstrol and tren for GREAT results.
Then again, how much gear you use is ultimately up to you, because the saying "more is better" is not always the case.
I know a few people who have done 100mg EOD of just prop and had great gains for a first cycle, with maybe a little dbol in the begginning of the cycle. Or even just alone.
hope that helps a little, but the more stats we have the better the info you'll get.