Frostking Sword which is a "stronger" variation of Frost Sword is missing the "Slows mobs" attribute.
It doesn't seem to make any sense because Frostking has 8.5 attack damage compared to Frost's 7.1 - a very small difference, right? So, rhetorically questioning, why would a player want to choose Frostking over Frost when the first one is missing its speciality.
The textures are also very similar, so I think it would make more sense for both swords to have same attribute.

Version: 1.10.9.1