Gravekeeper deck shouldn't mind much about mirror wall. I've three (from luck), and never use in my GK deck even one. The VERY important is E-Con. It's a MUST. Tribute your recruiter and summon something by opponent monster. You can force shuffle deck when someone parasite you, or use goblin to you-and plan to tether of defeat with conscription top 2 card of your deck, and so on.
Thanks guys,I will change somethings. I don't have E-Con (yeah, kaiba don't like me).
@VSartori O Recrutador do Coveiro você consegue com o Odion, a Sacerdotisa e o Chefe do Coveiro você consegue com a Ishizu, e o Soldado da Lança do Coveiro você consegue no mercador também, igual ao Oráculo.
@VSartori O Odion da pra se farmar fácil com o deck do Cerberus, a Ishizu tem que usar a Rapariga Infeliz, aqui no site você consegue ver os decks pra farmar eles.