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Does casting magic damaging spells on a unit under Soul Burn of Orchid of Malevolence will add up on the amplified damage on the end of it's duration?
Yes, all damage (including spell damage) taken while under the effects of Orchid Malevolence's Soul Burn will be amplified and applied as magic damage at the end of the duration.
Source: Play Dota Orchid Malevolence
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