Tri-Dashing

I am trying to learn tri-dashing with Thor. When I dash down-forward, I hit light and it hits the enemy. Afterwards, I have no idea how to continue to combo? What are Thor’s capabilities with tri-dashing and how can I effectively use it? What do you follow the light up with?

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The tri-dash L can be confirmed into a c.L once you land into whatever you normally do.