If a character has a Requires A Skill Roll power using Luck as the roll, that means that the player must roll a 6 to activate the power, correct? Which in turn means that a power that needs two levels of Luck needs two 6s, correct?
If that is right, say the character 6d6 of Luck, does the player roll 6d6 or only 1d6 per level of Luck required?