devourer's expalanation in "Item Sets" page is not true

Stalker's Blade - Devourer and Skirmisher's Sabre - Devourer say "+25 Magic Damage on Hit." Renger's Trailbalazer - Devourer and Poacher's Knife - Devourer say "+40 Magic Damage on Hit."

All these item's explanation in game say "+25 Magic Damage on Hit" So I think Renger's Trailbalazer - Devourer and Poacher's Knife - Devourer's explanation in "Item Set" page is wrong.