VFX Aura & After image effect in the same solution?

I’m looking to do a VFX aura that slightly pulsates around the Player game object and creates an after-image effect when it moves.

It’s for a game where the setting is a chessboard (you control a pawn, hunted by enemy pawns). I’m not looking for a crazy VFX, just a nice and weak pulse surrounding the player at all times and following the player slightly when moving regularly and more noticeably when dashing (think the after-image effect in games like SF2/Super Metroid/Castlevania, but 3D).

Since I’m new to Unity, especially concerning VFX stuff, any suggestions on how to do this?