I like unusual situations and I come across one that I want to double check with the community, here is the scenario:

A Geomancer equipped with the Lifedrain Scepter (mainly the user can recover one [heart] if the attack does at least one [heart]) uses is Earthen Anguish (target a stone place and do a blast attack) ability ... no luck all monsters affected by the blast have good defense rolls and no one loses a single [heart] ...

Now the tricky part ... the stone is also affected, even if it will be defeated at the end

Could the Geomancer roll for the stone defense so he could reach this damage that will give in 1 'life' in return?

From my point of view, even if nobody does it because it bear no difference ... most of the time, this roll should be in theory always rolled ... just in case it could fire some abilities ... like with this scepter.

Is my point of view correct or not?

I'm surely not a Descent expert but I think it depends on how you interpret the Earthen Anquish ability. It says " Exhaust this card to perform an attack with a Magic weapon targeting a space containing a Summoned Stone "

So you do not actually attack the Summoned Stone, but rather you attack the space the Summoned Stone is on.

The ability Blast sais: " This attack affects all figures adjacent to the target space ".

So in my interpretation:

1. You attack the space your Summoned Stone is on, but you do not attack your Summoned Stone itself
2. Blast causes all adjecent spaces to the space you just Blasted, to also be affected by the attack. Again, your Summoned Stone is not affected because it is not adjecent to the target space, it is on the target space.
3. Since the Earthen Anquish ability states that your Summoned Stone is defeated afterwards, it'll eventually be gone anyways, but not due to the Blast attack.

I think the same question/situation would apply to the Necromancer's Corpse Blast ability: " Perform an attack targeting your Reanimate's space with a Magic weapon. This attack gains Blast. You do not need range or line of sight to the space. After the attack is resolved, the Reanimate is defeated . "

But like I said i'm no expert, so I'd love to hear an expert's opinion.

See Sadgit's response below

About your point 1, for me attacks always target a space

"Declare a target space occupied by an eligible target.
Figures may not target friendly fgures or empty spaces.
Certain attacks may target multiple spaces" (from CRRG thanks Sagit and all that helped!)

Here I think they specify it (like for the reanimate) because with normal rules it's not a valid target because it's a friendly figure...

Corpse Blast and Earthen Anguish allow the hero to target the familiar. Everything else is handled like a standard attack. Using the Lifedrain Scepter, the hero would indeed recover 1 damage even if the attack only damaged the familiar.

Thank you Sagit for your info.

2 hours ago, Felin said:

Here I think they specify it (like for the reanimate) because with normal rules it's not a valid target because it's a friendly figure...

Good point!

1 hour ago, Sadgit said:

Corpse Blast and Earthen Anguish allow the hero to target the familiar. Everything else is handled like a standard attack. Using the Lifedrain Scepter, the hero would indeed recover 1 damage even if the attack only damaged the familiar.

Thanks for the clarification

Sadgit's got it, but as an additional note- you can attack a summoned stone (as a hero) with any attack generally- you do not need earthen anguish. This is allowed by the summoned stone familiar card (not usually a good idea to attack your stone, but it can sometimes help).