Glasscanon question

Does anyone know how glasscanon works?
Does it take 50% hp and turn it to 50% weapon dmg? Or does the more HP yoj got the damage it give?

And resource cost affix does anyone know what it does?

Glasscannon removes 50% HP and adds 50% damage

Attack cost is lowered by the percentage

It convert your hp to damage %

Glasscannon is percentile. The former is correct.

Resource reduction is an affix that will reduce MP, HP, or Energy casting costs. Compared to MP Reduce which can only reduce MP cost.