okay well to be honest current demon items are pretty useless i think that they should all be lumber only except the ward one that gives armor, also i would like to see some new ones maybe this:
book of dead:2500 lumber allows the builder to summon 2 skeletal warriors and 2 skeletal archers 180 second cool down (single use charge).
skeletal warrior: 400 health 30 damage(melee) and 3 heavy armor (effected by demonic strength upgrades)
skeletal archer: 400 health 30 damage(700 range) and 0 unarmored armor (effected by demonic strength upgrades)
what you guys think to uber?
On the contrare, the summoning stone is badass. You give it to Balthazar, summon your summons, blink him out, then use the stone on them. Your entire army blinks to Balthazar, trapping the minion/titan.