Learn step-by-step how to set up an image sequence reference in Sequencer, build an advanced procedural slash material using radial coordinates and smooth steps, and bring it to life using Unreal Engine’s Niagara Particle System! 
https://dev.epicgames.com/community/learning/tutorials/vy511/project-l-slash-fx-in-unreal-engine-5-2-niagara-tutorial