
Theran Silvermane |

What exactly are we looking for here anyway? That staff certainly seems out of place. I am going to inspect the armor, I recall tales of such things being used as guardians in times past.
Staying a few feet back, Theran will examine the armor and staff, in that order.
perception: 1d20 + 2 ⇒ (3) + 2 = 5
arcana: 1d20 + 4 ⇒ (11) + 4 = 15
history: 1d20 + 3 ⇒ (12) + 3 = 15

Torbin Juventus |

Torbin will approach the staff and the armor taking a look at the items without touching them. He will also be wary of any other doors which we do not currently see in the room but which may well be there.
Knowledge Religion Check (on the Staff) 1d20 + 3 ⇒ (18) + 3 = 21
Perception 1d20 + 3 ⇒ (16) + 3 = 19

DundjinnMasta |

The moment that several people became curious of the armor and staff by stepping towards them the suits of armor come alive. The magical animated plate armor clamors as it moves, banding and grinding like the vengeful spirit of a fallen defender.
Initiative
Torbin: 1d20 + 4 ⇒ (7) + 4 = 11
Marik: 1d20 + 3 ⇒ (19) + 3 = 22
Raldor: 1d20 + 3 ⇒ (17) + 3 = 20
Renagir: 1d20 - 1 ⇒ (5) - 1 = 4
Duncan: 1d20 + 1 ⇒ (8) + 1 = 9
Theran: 1d20 - 1 ⇒ (13) - 1 = 12
Salmoryn: 1d20 + 3 ⇒ (8) + 3 = 11
Animated Armor: 1d20 + 0 ⇒ (14) + 0 = 14
Marik and Raldor can now GO!

Raldor |

Raldor growls and draws his two shortswords, attacking the nearest animated suit of armor.
attack: 1d20 + 5 ⇒ (15) + 5 = 20
damage: 1d6 + 3 ⇒ (3) + 3 = 6
attack off hand: 1d20 + 3 ⇒ (3) + 3 = 6
damage: 1d6 + 3 ⇒ (5) + 3 = 8
not sure exactly how crits work. The DM for my ftf game just uses double damage on a crit roll. I'll roll confirm and damage again, so if that's the method used I won't slow things down.
crit confirm?: 1d20 + 5 ⇒ (18) + 5 = 23
damages: 1d20 + 3 ⇒ (4) + 3 = 7

DundjinnMasta |

There is no longer a confirmation roll. As far as I can tell you do double damage on the attack. Rolling all dice included in the attack twice and adding twice the static bonus. I don't know if I read it right but that is what I took away. However you didn't roll a natural 20. You rolled a 15 but the question is a good one for future reference.

DundjinnMasta |

Marik, the Knight, is quick on the draw. An arrow is pulled from his quiver and fired at the animated armor in quick succession. The arrow passes harmlessly by the possessed plate mail but Raldor closes on the first of the guardians with the slash of one shortsword that rakes over the steel in a shower of sparks while the armor moves like a fallen warrior to avoid the secondary blow.
The engaged armor moves with an uncanny quickness as it smashes the bulk of its mail at Raldor, not once, but twice. Attack: 1d20 + 4 ⇒ (20) + 4 = 241d20 + 4 ⇒ (6) + 4 = 10 Good thing we confirmed those crit rules... The animated armor does a grave amount of damage to the taller half-ogre (10 damage) but the ranger manages to avoid getting slammed by the armor a second time.
The other suit of armor closes the distance between the remaining companions and itself. 1d6 ⇒ 4 It leaps off the platform at Renagir proving that it is not confined to it. 1d20 + 4 ⇒ (7) + 4 = 111d20 + 4 ⇒ (17) + 4 = 21 The aged warrior manages to avoid the initial slam, but is caught in the chest with the bulk of the second slam. (5 damage)
Renagir attempts to counter attack and keep the animated armor at bay with a quick thrust to its stomach plate, but the blow deflects harmlessly off the armor.
Torbin, Duncan, Theran, Salmoryn can GO!

DundjinnMasta |

Duncan engages the wayward armor so that it can no longer move into the back row of his companions and with a mighty blow he cleaves part of the armor away, but the reminder of the armor continues the mindless assault turning his focus on his opponent like a challenged knight until...
Torbin races around the animated armors to reach his hand forth for the azure staff at the moment that he touches it the room is filled with a brilliant flash of light and the armors turn towards him completely ignorant of all other enemies now.
You can feel magic pulsating through you. Not the cold magic of the arcane, but the spreading warmth of the divine. You can hear distance singing upon the wind, the most beautiful voice that you have ever heard. In the flash of light you are revealed a vision of three people... a beautiful woman of perfection sits upon the ground as she sings over the world. A protective knight stands over her with a hand comfortably on her shoulder and an old mage dressed in an odd assortment of colors seems to be staring right at you. He offers you a smile... then you are dragged back to the hectic combat.
Religion Check: The Celestial Forge was the place where the god Reorx forged items for the other gods... this azure staff has the symbol of Mishakai etched into it.
Theran joins with Duncan in combat, but his attack is turned away by the steel plates.
Salmoryn is quick with the bow and the arrow strikes through the animated armor with great efficiency.
Round 2
Marik and Raldor can GO!

Raldor |

Seeing the light burst forth from the staff, and the armor heading towards Torbin, Raldor strikes again, trying to fend the automaton away from the man.
attack animated armor: 1d20 + 5 ⇒ (7) + 5 = 12
damage: 1d6 + 3 ⇒ (4) + 3 = 7
attack off hand: 1d20 + 3 ⇒ (6) + 3 = 9
damage: 1d6 + 3 ⇒ (5) + 3 = 8

Duncan Esteros |

Duncan again swings his great sword, now at the departing armor which he has already severely dented.
Attack-melee: 1d20 + 5 ⇒ (20) + 5 = 25 Woot!! My first 5e crit!!
Damage: 4d6 + 3 ⇒ (4, 2, 6, 4) + 3 = 19

Marik Irondale |

Will save: 1d20 + 2 ⇒ (14) + 2 = 16
[b]"Careful now, my friends. Beware the curse that set those goblins upon each other. Let us take the staff and go," Marik says, gesturing to Torbin to follow as he slowly backs out of the room.

DundjinnMasta |

Theran continues to fill his pack with treasure without even heeding the words of his companions.
Well, if they don't want any. It is all yours... or maybe they do. Raldor is picking about YOUR treasure. Torbin has stolen that staff from YOUR treasure. You can feel the weight of the gold and other items in your hand as your grab handfuls and stuff it into your bag. It is glorious, a treasure befitting a true hero.
Theran seems to be looking hard at Raldor who is showing interest as well as Torbin who carries the staff, but he is occupied by the worthless gold that he is shoving into his bag.

Marik Irondale |

This isn't going to end well, Marik thinks to himself as he moves out of the treasure room toward the exit. There has to be some way to get them away from this cursed junk ...
"Ogres! Ogres and more goblins and coming! Everyone line up outside - we have to keep them out of the ruins so we can protect the treasure!"
He tries to herd everyone out the door, continuing to shout about new attackers.
Deception: 1d20 + 3 ⇒ (12) + 3 = 15

Torbin Juventus |

Torbin begins to inspect the staff for runes or script which may give an indication as to its origins or use.
Let me know if I need to make a roll.
"Yes, let us head back and quickly. No doubt the Baron will know what to do with this mysterious item. Perhaps he or one of his advisors can determine if what I saw was some sort of magic emanating from the staff".