I meant the ability for the Ranger to summon creatures, but I didn't express the idea clearly. But maybe he could also tame enemy creatures? (Something like "Song of Peace" from the fourth game - it removes enchantments). And iron wasps could be a unit with a certain number of hit points (depending on the number of Rangers, but with a specific limit). It could stun with a 40% chance, and there's a 20% chance to miss.
The wasps are also a good idea.