Death for Life

When you have killed a creature or reduced them to 0 hit points, you may cast this spell as a reaction to utilise the surge of death and life within the target to bolster another creature's life force. A target within 60 feet gains temporary hit points equaling 1d6 + your spellcasting ability modifier for 1 hour. This spell has no effect on constructs or undead, it may neither be used from downing them nor may it be used to target them.
Additionally, if the caster of this spell uses "Grim Harvest", they may forgoe the healing from grim harvest to instead heal twice that amount to the target of this spell.

At Higher Levels. When you cast this spell using a spell slot of 3nd level or higher, the target gains 1d6 additional temporary hit points for each slot level above 2nd.

"As the creature falls you create a pathway, redirecting the energies of life and death to bolster your allies."