Chest - Game Mode

Okay so I've been sitting on this idea for a while, and was wondering what other people think about it.

I was thinking of a game mode (like Urf Mode) where no one is able to buy any item, but their starting lane item and health/mana potions/biscuits.

After the minions spawn, every few minutes a chest will spawn randomly on the map (it will be indicated on the minimap).

The chest is accessible to both teams but only contains one random item. Whoever opens the chest gets the item.

The chest then disappears until a new chest spawns in a different location.

I was also thinking of how I could make it more interesting.

There could be "special" chests which are role specific, which are colour co-ordinated to each role. (For example: Green chest for Jungle role, contains common jungle item.)

Only there's a chance that these chests are a booby-trap which causes damage over time or a de-buff of some sort.

Let me know what you guys think! I think it could be a really fun, challenging mode.