I've noticed an interesting trend lately in Team Games that I like to call the Dragon Rush after the DLR Dragon Rush.
In many games the starting gold is around 1300-1500. With 2+ players that means 2800-3000 starting gold. I've seen several games now where one team mate gives the other a bunch of gold initially to buy a Dragon in their capitol on turn 1. If you can both pillage a city for a bit of gold on turn 1 it's even possible to get both players a Hero too since the total cost would only be 3100 (including tax and for the other player to buy a Lt Inf).
With this Dragon coming on turn 6 and many maps featuring VERY hard terrain you then proceed to Rush the dragon + Crows around capturing neutrals/attacking enemies who barely have 5-6 cities and 10-12 men of their own by turn 6-7.
KGB