the only thing this needs is a wepon (vamp stiliento could replace a pillar) besieds that it can annihalate half bloods even un uped (u rly need all the pests out at the same time or eventualy they can start to get quanta and attrition kill ur devoureres (slowly spell kill them by getting thier quanta back) besides that its golden
howver you can get decked out because of the small size if this deck, try adding in 6 devoureres with thoes pests, if for no other reason than to get more cards.