The Onager is Rohan's catapult and can be used to destroy enemy buildings and archers . They can be used on any troops but have a minimum range; therefore, they are very vulnerable to melee units. As the other Rohan sIege weapons, it is weaker than the other factions' equivalents.
This siege unit has no upgrades. This means that this siege unit can not gain any sort of permanent boost from upgrades found in either its palantir or from other units/heroes. If this is not the case, fill in the section following the policy.