Another option is to calculate the tile of the main enemy hero and place this tear in front of him.
Added 1 minute ago
Maybe I'm missing something, but why do you need 2 triggers? Perhaps that's why the error is occurring.
Added 47 seconds ago
I understand now.
Added 2 minutes ago
I only have 2 options: make the enemy hero go to a specific point and dig up the tear, or simply place the tear in front of the hero. I'm not sure about the latter, as the tear is an invisible artifact. It might not work.
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