Why is that an overdoing? Orcs have battle cries instead of magic, and there should be a battle cry for each school of magic. Why shouldn't there be summoning magic?
And if summoning is implemented, it should be weak, so as not to create an obvious imbalance. And definitely not magical, but rather a summoning of creatures that can be summoned in a literal sense. :) Therefore, I approve of the idea with wolves. But there is a problem: wolves live in the lands of dwarves, and orcs live in the taiga, which is very, very far away. Therefore, a "physical" summoning of wolves is not entirely appropriate... Although, who knows. But there aren't many creatures to choose from, because there are no neutral creatures for the taiga, and besides wolves, I don't see any other options.
Bow down and hear our cry,
Our earthly rulers falter,
Our people drift and die,
The walls of gold entomb us,
The swords of scorn divide,
Take not thy thunder from us,
Take away our pride.
G.K. Chesterton: English Hymnal