if you want to play a more control based build you can also run necrovalley to lock out the GY and things like all-out attacks and battle mania to force your opponent to attack and if you want replacements for 2 of the skill drains I recommend gold sarcophagus and card advance (and maybe trade-in) for more draw power to get to your field spell(s) sooner and/or draw into the skill drain

you can also add geartown, ancient gear gadjitron dragon, and trade in for better draw power and some more consistency if you so choose