Just 2 questions for the community:

1.) Just trying to clarify the LOS rule. Do other figures (friendly or enemy) block LOS event though you can draw a straight line from one corner of a space to another?

2.) Can the reanimate open doors or is the only action they can take other than movement, attack since that is the only thing stated on the card?

2.) Can the reanimate open doors or is the only action they can take other than movement, attack since that is the only thing stated on the card?

The Reanimate cannot open doors. The Descent base rules, page 17:

Any2cards hit #2 right on the money. As for #1:

All figures block LOS for all other figures- friendly or enemy only makes a difference for movement, but not for LOS. There is a wildlander skill "eagle eyes" that lets you draw LOS through friendly figures.

I'm confused by the second part of your sentence. If you can draw a straight unbroken line, you have LOS. If that line goes through any part of a blocked space (one containing another figure or an obstacle) other than the exact corner, you can't draw that line.

1.) Just trying to clarify the LOS rule. Do other figures (friendly or enemy) block LOS event though you can draw a straight line from one corner of a space to another?

Yes, all figures block LoS, friendly, enemy or otherwise.

In fact, per RAW, the target of your attack can also block LoS to itself, if the only corner you can draw a straight line to requires your line to pass through the target space itself. See the infamous example of Jain and the Zombie in the rulebook. (We quickly house-ruled that one, btw.)

Also of note: you cannot trace LoS to the back spaces of a large monster, as the forward spaces will block LoS (in most cases.) This becomes important for things like Blast - you cannot target the rearward space of a large monster in order to Blast onto figures behind it.

2.) Can the reanimate open doors or is the only action they can take other than movement, attack since that is the only thing stated on the card?

He can only Move and/or Attack. Once each, mind you. No double-moves or double-attacks. He gets 1 Move Action by default as a familiar, and he gets 1 Attack Action from his familiar card.

No double-moves

Why he can do only 1 move action?

There is a phrase :" When activated, a familiar may perform a move action following the same rules as heroes "

But heroes can do double-move...

Am i wrong?

Aectan, where you are going wrong is the templating of the wording which, as most here will tell you, is a bit loose.

The familiar may make A (emphasis on the a) move action. Singular. Like a hero, which means they gain movement points = to speed.

To be more explicit the rules for familiars state they may make one activation and they may make one move action and 1 action (if available) as listed on their respective card (which is why the reanimate can move and attack or attack and move)

Where heroes differ is that they can make 2 actions, both of which may be move actions.

2.) Can the reanimate open doors or is the only action they can take other than movement, attack since that is the only thing stated on the card?

The Reanimate cannot open doors. The Descent base rules, page 17:

When activated, a familiar may perform a move action following the same

rules as heroes. Familiars treat any special terrain (other than obstacles)

as water during their movement. The familiar may perform additional

types of actions during its activation, as noted on its Familiar card. These

additional actions, unless otherwise noted, may be performed in addition

to the move action and may interrupt the move action in a way similar to

hero move actions. If no such other actions are noted, then all the familiar

can do on its turn is move up to its Speed value.

In general, a familiar can only move up to its speed. The Reanimate card does allow it to also attack.

Since the Reanimate card does not state that it can take an action to open a door, it cannot do so.

Soooo... a Reanimate doesn't get affected by lava spaces, and is just slowed down? What about pit spaces? Does it just spend 2 movement points and "hovers" over the pit? What about flying familiars? Do they treat those spaces like water, or do they just fly over them?

2.) Can the reanimate open doors or is the only action they can take other than movement, attack since that is the only thing stated on the card?

The Reanimate cannot open doors. The Descent base rules, page 17:

When activated, a familiar may perform a move action following the same

rules as heroes. Familiars treat any special terrain (other than obstacles)

as water during their movement. The familiar may perform additional

types of actions during its activation, as noted on its Familiar card. These

additional actions, unless otherwise noted, may be performed in addition

to the move action and may interrupt the move action in a way similar to

hero move actions. If no such other actions are noted, then all the familiar

can do on its turn is move up to its Speed value.

In general, a familiar can only move up to its speed. The Reanimate card does allow it to also attack.

Since the Reanimate card does not state that it can take an action to open a door, it cannot do so.

Soooo... a Reanimate doesn't get affected by lava spaces, and is just slowed down? What about pit spaces? Does it just spend 2 movement points and "hovers" over the pit? What about flying familiars? Do they treat those spaces like water, or do they just fly over them?

No- a Reanimate isn't a regular familiar- it's a familiar treated as a hero figure, so you've got to see the rules on pg 18:

That's what I get for asking a question without looking at the rulebook first.