Afterglow

Before you fall unconscious or die, you can cast one last bless spell (spell slot must be available) to hail your god and faith, the power you worship and love. Aware of your own end but also of a final unfinished task, you channel the desire to help others in finishing this task in the future into this final bless spell.

Once between this moment and the next 1000 years, when your allies or other creatures that share your faith or task are in need of devine help and closer than 1000 ft to this place, the power of this bless spell will be released.

The glowing silhouette of the long gone spellcaster appears within sight of those beings, speaks encouraging words and blesses up to three creatures.

Whenever a blessed creature makes an attack roll or a saving throw before the spell ends, the target can roll a d4 and add the number rolled to the attack roll or saving throw. This spell will continue for 3 rounds and no one has to concentrate for it.

This bless spell doesn't stack with other bless spells and it ends when it's caster become conscious again.

At Higher Levels. When you cast this spell using a spell slot of 5nd level or higher, one additional creature for each slot level above 1st becomes blessed.