Dragons Back Ile of Trade.

Vigilance, Peaceful (this creature cannot attack or defend under any circumstances), Public ( this card is owned by all players in the game).
When this creature enters the battlefield give every player {2} time counters. All players cannot damage each other while these time counters are in play.
Every turn this creature can be tapped for one mana of any type.
At any time anyone can ask to trade mana. Trading functions like mana share but you get to choose when and what gets shared. Be careful though y