The storyline, specifically the Son of M (2006) limited series, follows the catastrophic aftermath of the "House of M" event where the Scarlet Witch depowered approximately 91.4% of the world's mutants with the phrase "No more mutants". Decimation (M-Day) Overview
Written by with art by Roy Martinez , this six-issue series focuses on Quicksilver (Pietro Maximoff) following the loss of his super-speed. Decimation - X-Men - Son Of M (2006) (Digital) ...
: Known as "M-Day," this reality-altering act reduced the mutant population from millions to fewer than 200, an group often referred to as "The 198". The storyline, specifically the Son of M (2006)