Synthesist Summoner & Uragoatha's Hunger (Scythe Divine Fighting Technique)

[Dreadmad]

EDIT:Both are sources of Temp HP. RIP

[Melkiador]

Sorry for your “loss”, but it’s not like the synthesist was in any need of “help”.

[Volkard Abendroth]

FAQ

Temporary Hit Points: Do temporary hit point from the same source stack? wrote:

No. Generally, effects do not stack if they are from the same source (Core Rulebook page 208, Combining Magical Effects). Although temporary hit points are not a "bonus," the principle still applies.

This prevents a creature with energy drain (which grants the creature 5 temporary hit points when used) from draining an entire village of 100 people in order to gain 500 temporary hit points before the PCs arrive to fight it.

Temporary hit points from different sources (such as an aid spell, a use of energy drain, and a vampiric touch spell) still stack with each other.

In this case the temporary hit points are from different sources and would stack.