koaki deck needs help

[RedSox0129]

monsters:
km valafar
km boulder *2
km crusader *2
km tornado *2
km doom *3
km guardian *3
km ice
km powerhand *2
snipe hunter
plaguespreader zombie

spell:
mst
shrink *2
giant trunade
urgent synthesis *2
immediate disposal *2
iron core of koaki meiru *3
monster reincarnation
lightening vortex
upstart goblin *2
brain control
scapegoats

traps:
trap stun *2
iron core luster *2
compulsary evac. system *2
mirror force
reckless greed *2



notes; i know i need drago, plague is in just for a backup sychro or two, should i get royal opressions?