The Power of Mako is the alternate EX Mode for Cloud while he is wearing the Advent Children outfit, which enables him to equip the completed Fusion Sword. However, it is identical to his normal EX Mode otherwise.
Mako Might is one of four Record Materia that can be acquired with Cloud in the fighting party. The player must advance Cloud past level 65 with his first two Memory Crystals and must also have acquired the SOLDIER Counter Record Materia in a prior battle. When equipped, a character bearing Mako Might will begin battles with two Soul Gauge charges completely filled, enough to execute two Glints or one common Soul Break.
In addition, Mako Power (魔晄の力!, Mako no Chikara!?) is also a Glint Soul Break for Cloud from the 2nd Fusion Sword (VII) relic. The ability deals six physical wind and non-elemental attacks to one enemy and temporarily grants the user Empowered Infusion for wind. The attack has no charge time and costs one bar from the Soul Break gauge to perform. It can eventually be mastered once accumulating enough experience into the 2nd Fusion Sword (VII) relic and grants a bonus to Cloud's base attack stat by 10 points.