Editing MTH:Super Speed (section)

===WIND-UP (*)===

Prerequisites: Super Speed

Effect: The character can make a special dash attack provided they can get up to full speed before doing so, slamming their target with their body, or striking them with a limb or weapon. To get up to this speed, the character must move at least 5 yards, even if they do so in a circle, then make a single melee attack as an instant action. The player takes a penalty to their initiative of up to the character's Super Speed dots. Each point of penalty translates to a +1 to the damage modifier for the attack. This effect can be used only with an activation of Super Speed and the penalty to Initiative is applied after the bonus to initiative Super Speed grants.

The player declares this action on their Super Speed initiative, but resolves it on their penalized initiative. This does mean that some characters may see the wined-up attack coming and choose to alter their actions based on this information. 

If the character can fly, they can apply this merit to a mid-air attack with the same mechanics.