This is a divert resource trigger, I just found it while being bored and exploring the editor. Its under players and you can set a percentage of the players resources to siphon off to a specific other player.
Gold give
Events
Player - Player 1 (Red)'s Current gold becomes Greater than or equal to 10.00
Conditions
Actions
Player - Add -5 to Player 1 (Red) Current gold
Player - Add 5 to Player 2 (Blue) Current gold