I thought it was shown that while it is a concious action, you can train to become a reflex, because it's been shown plenty of times that sneak attacks don't work on most logias.
Originally Posted by roguej2
It's why smoker was sent flying in alabasta, because he hasn't trained to make the transformation into an element a reflex yet
2nd Commander of WB crew
This is not true. Logically, a little bit of fire is required to melt a bigger amount of ice. So Ace has the advantage. With Light vs Darkness, its the same thing when you enter a dark room. Light up a little bit of fire and it will vanish a lot of darkness (considering darkness as an amount).
Originally Posted by Drago Musevini
Blackbeard's fruit power is gravity, not darkness; its a gravity so intense that light can't escape it, a black hole essentially. Since no light comes back, that's why its called "darkness", but its really the logia fruit of gravity. That's why he could suck Ace to his hand so he could hit him, it was just a case of focused gravity.