O, yea. Also everyone from Cupido’s family have it
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Just faced a Phthonus and saw they also had it, was coming here to mention and you beat me to it!! 
There are others, Forum favorite Klaern, golden girl Hanitra and @Homaclese 's favorite Elradir all with innate resistance from Passives.
Talents can give a % chance to resist. I don’t know beyond Poseiden which are specific to their specials but all the ailment immunity heroes like Hathor and Aramis work if you get them to fire first.
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and Miki
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Closing as the hero is released.
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