A few ideas for angler traitor items

[Mouse]

Fish Sharpener:  An item that, when used on a fish, turns it into a weapon.  Rarer fish make stronger weapons, and specific fish may have special qualities when sharpened.  (For instance, a lava fish would deal BURN and set people on fire, a pike would get a special that attacks people two, or even three, tiles away, because gettit, pike?)

Gashunk Frame:  Attach a fish to these mechanical legs and get a hostile critter that spews poison and is friendly towards anglers.  Rarer fish make stronger critters!

Phishing Rod:  Use this on a person to pull credits directly out of their bank account.