The circular protective shield effect is created using Unity particle system and PS. Available for Unity version 2017 and above.

If you subscribe my Patreon page, you can download the completed results here and my other effects files(Include textures,materials,shaders and Prefab): https://www.patreon.com/wangray 

Only buy this effect：https://ericwang.booth.pm/items/5182338 

Buy Unity_GameVFX Collection：https://ericwang.booth.pm/items/5220742