Unit idea

So, today an idea struck me. Might be shit, might be interesting, you tell me.

Unit name: Jester/Joker

HP: 1
Melee armor/Pierce armor: 0/0
Attack: 0
Movement speed: Mimics other units
Line of sight: Not sure yet

Description: So, it mimics other units but is otherwise useless (perhaps could scout depending on LoS and initial Movement speed). It would have something similar to the build menu of villagers, but with available units instead. Once the player selects the Jester and clicks for example the archer icon in the menu, the Jester suddenly looks and behaves like an archer. If an enemy clicks the Jester, it would clearly say that it's indeed not an archer, until then it could be used for shenanigans. My inital thoughts are that the Jester either can not attack at all, or attacks with 1 damage dealt.

Usage: Enemy scout died early, he has no info. Make the Jester into an archer and show it to him (hoping he doesn't have time to click it but time to see it and react, of course). Perhaps it will cause an overreaction, with skirmishers, while you go scouts. Or make the Jester into a villager, pretending to go forward and tower something. Basically spread some bad information. Make 1 man-at-arms, and turn the Jester into another, causing some extra fear and perhaps overreaction. Make a few archers and have the Jester make them look bulkier than they are. In defense against scouts, put one spear close to your gold and (you guessed it) make the Jester look like two spears are protecting that gold.

Acquisition: Not sure, I was thinking unique unit for some civ (not the main one, but an extra like genitours). One idea is having one Jester pop out of the TC as soon as feudal age is reached, for free. That would limit the player to one Jester. Otherwise they could be created from either the TC or barracks.

Cost: Tough, but I assume a Jester would enjoy some gold (50?), or food (100?) or both (50/50?). For balancing, stone might be interesting (50 would make 2TCs at the start of castle age require extra stone gathering, 100 could be nice to deny the player towers without gathering more stone). It would need balancing, I'm sure 100 stone would render the Jester unused.