Blacktree Arrow Detail tab: A single magical arrow that hits multiple targets. A number of random units in the camp will be defeated and removed. Defeats fewer units than other arrow types, but its use on enemy camps is not limited. Cost: x 1000 x 2000 x 500 Production Time: Instant Upgrade: 0 Objective: Home Island: Buildings Delete Item: No Trade: Yes Type: Instant Upgrade Recipe 1 d 12 h x 500 x 200 x 50 x 1 1 d 12 h x 500 x 200 x 50 x 1 1 d 12 h x 500 x 200 x 50 x 1 1 d 12 h x 500 x 200 x 50 x 1 1 d 12 h x 500 x 200 x 50 x 1 x 1000 x 2000 x 500 x 1