Unstable Hulk

This spell causes rapid jarring muscle growth for a brief period, before the excess mass dissolves into nothing.

If an unwilling target fails a Constitution save, the target creature's strength increases by 8 points (for a maximum of 22) until the end of their next turn. Every following turn, the creature is paralyzed as their muscles twist and contort, returning to normal. This continues until the creature makes a successful Constitution save (3 turns max). This spell only affects creatures of flesh. Willing creatures do not need to make the initial constitution save.