Pokemon
Friend Collection Indicator
Problem
The point of trading with someone is to help each other collect cards you don't have while getting rid of cards you have duplicates of. At the moment, it is impossible to tell what cards the player you want to trade with doesn't have. You have to just offer up a card you want to get rid of and hope they find that card valuable. Unless you are trading in person or coordinating the trade outside of the app, trading is almost useless.
Solution
A small indicator similar to the game's "Wishlist" or "Wonder Pick" icon can tell players which cards would be helpful with the person they are trading with. This eliminates any outside contact needed to trade and allows players to trade much more often.
Audience
All players, especially players that don't have any form of contact with their in game friends.
Impact and Level of Effort
Business Impact: This will significantly boost the amount of trades happening in the game. Without communciations, just sending a random card to a random friend you have on your friends' list is a gamble on whether the other player will even accept the trade. Trading is all about making a beneficial transaction between two players. The current implementation of trading allows zero opportunity in making the transaction beneficial for either party. Implementing this small feature will bring positive impact to all players.
Technical LOE: Understanding how a player's collection is stored is key to measuring the level of effort of this feature. If it is stored locally, we may need to reconsider how this feature can be implemented. However, implementing the icon should be very easy as they already have icons that exist in similar design and positioning of the card.