I am trying to make a spell out of Huskar's final ability, " Life Break "
I simply know how to make the damage trigger

I simply know how to make the damage trigger
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Life Break
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Events
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Unit - A unit Starts the effect of an ability
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Conditions
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(Ability being cast) Equal to Life Break
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Actions
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Unit - Cause (Casting unit) to damage (Target unit of ability being cast), dealing ((Life of (Target unit of ability being cast)) x 0.50) damage of attack type Spells and damage type Magic
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If (All Conditions are True) then do (Then Actions) else do (Else Actions)
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If - Conditions
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(Level of Life Break for (Casting unit)) Equal to 1
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Then - Actions
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Unit - Cause (Casting unit) to damage (Casting unit), dealing ((Life of (Casting unit)) x 0.40) damage of attack type Spells and damage type Magic
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Else - Actions
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If (All Conditions are True) then do (Then Actions) else do (Else Actions)
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If - Conditions
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(Level of Life Break for (Casting unit)) Equal to 2
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Then - Actions
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Unit - Cause (Casting unit) to damage (Casting unit), dealing ((Life of (Casting unit)) x 0.33) damage of attack type Spells and damage type Magic
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Else - Actions
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If (All Conditions are True) then do (Then Actions) else do (Else Actions)
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If - Conditions
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(Level of Life Break for (Casting unit)) Equal to 3
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Then - Actions
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Unit - Cause (Casting unit) to damage (Casting unit), dealing ((Life of (Casting unit)) x 0.25) damage of attack type Spells and damage type Magic
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Else - Actions
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