Mythic question!

thisthis is what I have so far, but I want to get read of the hp and put on defiant, but defiant is a green skill… what crystal do I use to apply that?

You can’t get Defiant set affix. Via crystal it can be only obtain by loot means get the item with Defiant set affix to be able to have .

defiant is a extremely rare set affix dont remove it