CB1 : /execute at @a if block ~~~ water run /effect @a instant_damage 1 1 true
CB2 : /execute at @a if block ~~1~ water run /effect @a instant_damage 1 1 true
CB3 : /execute at @a if block ~~1~ flowing_water run /effect @a instant_damage 1 1 true
CB4 : /execute at @a if block ~~~ flowing_water run /effect @a instant_damage 1 1 true
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