Curse Type Skill Vs Curse

Date- 12 April 2321

Time- 08:47

Location- Southern Region, Southern Capital, Southern Royal Palace, Royal Guest Palace No.01, Seed World 

The A-rank curse 'Curse Incarnation' that I bought on the inter-realm network was not a skill but a curse. What's the difference? 

Take my Myriad Devil body card for example. It was a curse-type skill. I can use it to curse myself using the Myriad Devil Transformation and curse others using the Myriad Devil hex. 

When I use Myriad Devil Transformation on myself to transform into a rock, I am cursing myself to turn into a rock using my curse-type skill. 

Here Myriad Devil Transformation was the curse-type skill and my turning into rock through Myriad Devil Transformation was the curse. 

Curse Incarnation however was a curse to turn my body into a monster whose physical strength gets enhanced based on the strength and number of curses it can house in my body.