Hello, I have my doubts, I want to make an animation of a Magic Circle after or while a player uses an item.

The player uses the item and a Spell Circle appears on the ground, see pic: 

 

http://2.bp.blogspot.com/-cYC195T96CU/VK5ljPuIZ2I/AAAAAAAAMfc/V_l45FFhJt4/s1600/Token%2BCircle%2BRough%2Band%2BWorn.png[/img]

 

The Magic Circle spins slowly and gets smaller and smaller until it dissapears.

I dont know if I should use a custom item renderer... (How would I stop it from spining?), or animate an entity and make it follow the players position, but what kind of entity, How?. Wich is better? Do you know a smoother way of doing it?

Thanks

The spell circle would be a particle.  That's easy enough to do.