Hey there. If an Exotic weapon already has an anti-champion effect, or a keyword ability with an anti-champion property (Slow, Blind, etc), it cannot gain the effect from an anti-champion mod. Here is Bungie's own statement on it. [quote]Clarification on Stasis Exotics and Artifact Mods We have seen reports that Wicked Implement and Conditional Finality aren’t receiving the Anti-Barrier perk from the Artifact. This is by design due to the exotics being Stasis and having the intrinsic "Slow" perk already, which can be used against Overload champions.[/quote] https://www.bungie.net/7/en/News/article/twid_10_10_2024