Hey there, smashers!

Here are some games to induce inspiration for the theme.
These games have a ‘death improves you’ mechanic/theme.
I hope you enjoy it!

Rogue Legacy - When you die, your children inherit your castle and wealth, each with unique traits that affect gameplay
Dark Souls - Deaths teach you enemy patterns and leave bloodstains with lessons for future attempts
Hades - Each death returns you to the House of Hades where you can upgrade abilities and advance relationships
Deaths Door - Collecting souls from the deceased increases your power and abilities
Loop Hero - Death returns you to your camp with resources to build permanent improvements

Happy smashing!