Add Loot for Killers when hooking
Survivors can get items with add-ons while searching in chest. How about give Killers something similar. When they hook someone, they get a chance to get a goodie (either an add-on or an offering). Since Ultra Rares are coming with the next patch for SV in chests, Killers should get the same.
We have 4 SV, so the Killer has 4 chances to get something at least once. And no, not every SV will drop something, but one of the four will do. It should happen on the 1st hook.