Liegian Darts

The Liegian Darts were a collection of projectiles employed by the Liege Maximo as his primary weapon in battle. The darts contained powerful toxins and chemicals designed to incapacitate Maximo's enemies in various ways once they entered the body.

The Covenant of Primus
Liege Maximo used his darts to poison Unicron during the Thirteen's war with the Chaos-Bringer, although they didn't hurt Unicron nearly as much as Maximo's acid tongue.