Accumulate

With a moment of concentration, the user can draw upon hidden reserves of power that allow the possessor of this ability to momentarily perform feats of strength greater than they could normally achieve.

System: Spend 10 MP, and gain +1 to strength, +1 per 4 ranks on use (+7 strength at max). This buff lasts for 3 rounds, +1 per 12 ranks. This ability can push your strength beyond the 24 maximum, and does not stack with itself.