It would look like this.
I made some edits to the power as well. The extra supplemental for -2 seemed a little expensive so I pulled it out of the main write up. Changed the stacking to allow it. I think it makes narrative sense, though it may not work mechanically well. Combined each 2 gates into one single power, with two activation steps. I removed Gate intermediate. There are only 3 supplemental actions in the power as is now. Gate master should maybe allow all 3 to count as a single supplemental. That may be a better -1 power. Rewrote the way you addressed recovery powers, both in the notes and in gate of healing. Specified physical stress in both healing and death gates.
I also feel the notes could specify the gates need to be opened in order, so it doesn't have to repeat at each gate but I left that. It's about the same size with an easier to read format
EIGHT GATES RELEASED FORMATION [-2]
Description: You are able to push your life force through your muscles. This makes you faster and stronger, but damages your health rather badly.
Note: Consequences taken to fuel this Power act as the catch for all toughness powers. All physical powers stack with others. Eg, if you have inhuman strength already, the first gate will give you supernatural.
Skills Affected: Endurance, Fists, Might, Weapons, Athletics, Alertness
Effects:
Gates of Opening and Healing: First and Second Gates. As a free action, you may take a mild (or worse) physical consequence to open the Gate of Opening. For the rest of the scene this gives you Inhuman Speed and Strength. As a supplemental action, you may open the Gate of Healing. Upon opening the Gate of Healing you may clear your physical stress track as though the scene had ended. This will not trigger recovery powers to clear out other consequences. You may not use the Gate of Healing unless the Gate of Opening is open.
Gates of Life and Pain [-2]: Third and Fourth Gate. As a free action, you may take a moderate (or worse) physical consequence to open the Gate of Life. For the rest of the scene this gives you either Supernatural Speed or Supernatural Strength. You may not open the Gate of Life unless the Gate of Healing is open. As a supplemental action, you may open the Gate of Life. For the rest of the scene this gives you armour 2 against all physical stress(stacks with toughness). You may not open the Gate of Pain unless the Gate of Life is open.
Gates of Limit and View [-2]: Fifth and Sixth Gate. As a free action, you may take a severe (or worse) physical consequence to open the Gate of Limit. For the rest of the scene this gives you Supernatural Strength and Speed, You may not open the Gate of Limit unless the Gate of Life is open. As a supplemental action, you may activate the Gate of View. For the rest of the scene your hands are wreathed in weapon 4 fire, and allow you to attack entire zones with melee attacks without risk of harming yourself. You may not open the Gates of View unless the Gates of Limit is open.
Gates of Wonder and Death [-2]: Seventh and Eight Gate. As a free action, you may take an extreme physical consequence to open the Gate of Wonder. For the rest of the scene this gives you Mythic Speed, Mythic Strength, and armour 4(stacks with toughness) against all physical stress. You may not open the Gate of Wonder unless the Gate of View is open. As a free action, you may open the Gate of Death. This gives you +2 to all physical rolls and makes you immune to all physical stress, but kills you in four exchanges (or roughly one minute outside of a conflict). You may not open the Gate of View unless the Gate of Wonder is open.
Gate Master [-1]: You may take up to 3 supplemental actions associated with this Power in a single exchange as a full round action.