Idea- heroes last stand

How about giving the heroes a heroic way of dying by making a last stand on TH

1. The heroes of TH9 and 10 will comeout from TH when attacking troops enter its 3 tiles radius
2. The heroes will only have 1 or 5% of its original hp depending on its level.
3. Heroes as defense will still be the same but would be gone once its remaining hp fall below 5%.
4. once the heroes have been killed its soul will appear on front of the TH.
5. If the TH has been destroyed before the heroes have been attacked as defense and got killed his soul would appear in front of the ruined TH.
6. Additional achievement can be created for heroes who would successfuly defend the TH during his last stand despite his low hp but same attack point