In "Hearthstone", "self-mutilation" decks usually refer to those Warlock decks that sacrifice their own life points in exchange for powerful effects. This type of deck has had different manifestations in different versions in the past.
April 20 Legend 32 Silt Technique
Card group code: AAECAf0GBI+fBPnGBYCeBtCeBg2EoATO5AWt6QXO+gXX+gXjgAaEngbEngajoAb3owamqAacswbw5gYAAA==
The above is all about how to match the self-mutilation deck in "Hearthstone". For more game strategies, please click the source code website.