Temporary Hit Points, Damage, Concentration, and Proper FG Behavior

[Minty23185Fresh]

An NPC has cast a spell that requires concentration, then the NPC is subsequently hit by an attack and receives damage.
But the NPC has enough temporary hit points to absorb all the damage, in essence receiving no damage to themself.

Fantasy Grounds is rolling a Save for the NPC to determine if concentration is lost. Is this really proper FG behavior?

The scenario that triggered this is "Arcane Ward". I'm using TMP HP to track the hit points that the Ward can absorb. The wording for the Ward states the Ward takes the damage instead of the actor (NPC). I.e. the NPC receives no damage. No damage implies a concentration roll is inappropriate.

Given the definition for Temporary Hit Points in the Players' Handbook, using the TMP HP for Arcane Ward seems reasonable to me.

From the definition:
"Some spells and special abilities confer temporary hit
points to a creature. Temporary hit points aren’t actual
hit points; they are a buffer against damage, a pool of hit
points that protect you from injury."

[Seabvharin]

Over on page 203 of the Player's Handbook is the rules for Concentration checks:
Taking Damage: Whenever you take damage while you are concentrating on a spell, you must make a Constitution saving throw to maintain your concentration.

This rule makes no mention of type of hit points, only that you took damage.

Also, Jeremy Crawford has stated:
"The DC is 15. When temporary hit points absorb damage for you, you're still taking damage, just not to your real hit points."
From his Twitter https://twitter.com/JeremyECrawford/status/503958007177166848

[Minty23185Fresh]

Thank you.
Absolutely the opposite way I would interpret it, but, I’m not Jeremy Crawford.

So. I can’t use TMP HP for Arcane Ward. And FG works correctly.

Thanks again.

[jrowsey1]

There is this extension that may help.

https://forge.fantasygrounds.com/shop/items/635/view

[SilentRuin]

WOTC is full of strange behavior syntax. Safest is to play it as written or write an extension if you wish to "interpret the rules" in a more detailed light. This is one of 100's of things you could point to where the rule "good enough" will apply lest you get buried in all the minutia of applying the perfect rule.

[Minty23185Fresh]

There is this extension that may help.

https://forge.fantasygrounds.com/shop/items/635/view
Thanks. I had seen this as a possible solution prior to opening this thread.

But my situation is for 17 hit points for “the big bad” NPC in the final showdown at the end of one Adventurers League module. In my mind it is just not worth the effort of arming up with another extension.

[Minty23185Fresh]

Thank you SilentRuin. “good enough” is a great idea. And exactly the tact I’m going to use.