After putting part of the armor with health attribute on the negative level on a player and than dealing a small damage to the player, he dies in a very specific way (Shown on the video).
Commands:
/replaceitem entity @a armor.feet diamond_boots{AttributeModifiers:[ {AttributeName:"generic.maxHealth",Name:"generic.maxHealth",Amount:-16,Operation:0,UUIDMost:12272,UUIDLeast:110438}]}
/effect give @a wither 1 100 true
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However, this issue is a Duplicate of MC-19690.
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