The best part about this deck is it's amazing search power and the synergy of effects with each other, with Gravekeeper's Recruiter as your main search engine. Baggy Sleeves is great because it further increases your card advantage whenever a high leveled monster you control is destroyed.
When Gravekeeper's Recruiter is sent from field to graveyard, you can search any Gravekeeper monster from your deck and add it to hand. This effect is really good as Gravekeeper's Recruiter only needs to be sent to the graveyard not destroyed meaning you can use him as tribute to get his effect out.
Starting with Gravekeeper's Recruiter is often better. Gravekeeper's Recruiter can be tributed in many ways to help you use your search. One of the best ways is to use Enemy Controller to tribute your Gravekeeper's Recruiter and take control of your opponent's monster and search Gravekeeper's Chief then tribute summon him as well as reviving the Gravekeeper's Recruiter. You can choose which effect to use when you tribute summon Gravekeeper's Oracle using Gravekeeper monsters. It's almost always safer to lower your opponent's attack and defense since it weakens them and makes your other monsters able to take them down without the threat of a Mirror Wall, but destroying their set monsters can be good too to prevent flip effects if you are certain you can take down their face-up monsters. Increasing his attack effect is very situational and almost never recommended.
Before you worry about GK decks, I urgently need to point out first that your grammar is still NOT competitive enough. Before you plan anything as well, consider trading your phone or your DL account to get some extra money, then proceed to learn grammar better. This will surely keep you more competitive than those craps you are blabbering above.
Already tried it, however it sucks against opponents who also use DARK nd will get a free boost from your field. Gravekeepers, Red Eyes, Dark Magician combo, Dark Freed decks, Necrofear. There are just too many DARK decks out there.
Angmarl is an excellent addition to a GK deck. To get a +1 in a spell is no joke