You basically just want to set up your grave using Protector whelp, who you will usually get out by doing the Black Metal Dragon -> Striker Dragon -> Darkness Metal Dragon string or the Sky Striker engine. You can special summon BMD by using One for One. if you drew a more trap based hand you can search using Buster whelp and set up your gy in case you drew into any other low level dragon monster.
When using Prologue you usually wanna get a memories or a Dragon Buster in the GY. in addition to the mandatory Buster Blader. Vishuda will also help when trying to get out the Buster Dragon or any other Synchro for that matter, as it's level 7 and all tuners are level 1.
Also if your grave is already set up to for using Memories you can put Sword Flash into the grave, as thats just a free negate on target.