poison immunity?

so im making this unit with lots of armor but very little HP, and the idea is to have a unit that's good vs attackers but weak vs spellcasters. I later realized that my very weak units with Envenomed Spears could take out this unit with only a few shots, since armor doesnt affect armor... So, is there a way to make a unit immune to poison? thanks in advance!|||Poison abilities have a list of targets - it's simple enough to go in and edit the targets to not affect some category (as for example "Mechanical" is already).|||hey, thanks for the reply CHUNK, but "Mechanical" is already unchecked in the Object editor. Your reply made me think though, and I looked at the target which wasnt supposed to take this huge amounts of damage, and I realized that THAT unit was NOT classed as "mechanical"... So, that was the problem, and it's fixed now|||Make sure you made the unit in question "Mechenical", it will still be able to hit the target, but not apply the poison from for example Envenomed Poison and alikes.