Little green wizard

Little green wizard is a riddle for any number of participants.

Equipment
You don't need any equipment for that riddle.

Procedure
The players are sitting in a circle. One player (knowing the solution) starts the game by saying:

I am a small green wizard because I ..

and he offers some explanation why he is a small green wizard. Then, the next player does he same thing. All players knowing the solution the clarify whether his rationale was correct or not. The target of all players is to find out the system what makes an rationale valid or not.

Any player guessing to know the solution do not disclose it, but just participate in the game and try to play along correctly.

Solution
You can find the correct solution on the page little green wizard/solution.

Kleiner Grüner Zauberer