High level Clerics get the Divine Intervention feature, which has the following passage:
Describe the assistance you seek [...] The GM chooses the nature of the intervention; the effect of any cleric spell or cleric domain spell would be appropriate.
High level Arcana Clerics get the Arcane Mastery feature (SCAG, p. 126):
At 17th level, you choose four spells from the wizard spell list, one from each of the following levels: 6th, 7th, 8th and 9th. You add them to your list of domain spells. Like your other domain spells, they are always prepared and count as cleric spells for you.
...which lets them choose Wish as a cleric domain spell. The basic use of Wish is to replicate the effect of another spell, but some other Wish uses make the caster suffer Wish stress.
The stress of casting this spell to produce any effect other than duplicating another spell weakens you. After enduring that stress, each time you cast a spell until you finish a long rest, you take 1d10 necrotic damage per level of that spell. This damage can't be reduced or prevented in any way. In addition, your Strength drops to 3, if it isn't 3 or lower already, for 2d4 days. For each of those days that you spend resting and doing nothing more than light activity, your remaining recovery time decreases by 2 days. Finally, there is a 33 percent chance that you are unable to cast wish ever again if you suffer this stress.
What happens if an Arcana Cleric with Wish as its 9th level cleric domain spell makes a (successful) Divine Intervention and asks for a Stress-Inducing Wish (like granting a damage resistance to up to 10 creatures), assuming the GM rules that the god does indeed accept to grant the request as is (making a stressful Wish) ?
- The Arcana Cleric is still the one who suffers the Wish stress (risking losing access to Wish)
- The Cleric's god is the one who suffers the Wish stress (risking losing access to Wish)
- No one suffers the Wish stress, since gods are too powerful to be affected by Wish stress
- Other behaviour
All this assumes that the god is the one casting the spell during a Divine Intervention, which might not be accurate.
I'm asking this in the scope of Adventurers League play, although it might not matter.