Since he has Colossal Stamina, can he use his special Pulse Wave power twice in a row?

If so, would he then have 4 action tokens and take 1 or 2 pushing?

Or does he have to be clear to use a double power action.


What about if he has 1 action token, can he use a double power action and take 1 pushing?

No and no.

Ruleook page 8:

From the 2017 Core Rulebook p. 8

DOUBLE POWER actions are costed actions and work the same as POWER actions except for the differences listed below:
• Immediately when given a double power action, the character gets two action tokens.
• Can only be activated if the character has 0 (not 1) action tokens.
• Can’t be given “at no cost” or “as FREE.”