Wall Giants have the trait “Reinvigorate,” which is the same as Unicorn Vivifier’s trait. I assume they’re supposed to have their own unique trait? (In Siralim 2, they had the “Hostile Vitality” trait)
Very strange, the wiki has the wall giant as having Hostile Vitality, so it definitely did at some point in time, but my game (0.10.8, updating soon) also shows it as having Reinvigoration right now.
Fixed in 0.10.10. Wall giant now has correct trait Hostile Vitality.