Chapter 4: Adventures in Blingdenstone
Be sure to read and follow the guidelines for our forums.
The mission quickly is started, with many scores of gnomes preparing for a battle, their elemental companions assisting in last-minute preparation. You follow along with the gnomish battle-group and enter the same chamber you tried to use before.
The gnomes rush forward and attempt to overwhelm the oozes as quickly as they can, and Dorbo motions for you to head through a side passage. The elemental immediately starts that way, smashing oozes as it goes. You enter the side passage, which is a wide and winding area. You turn around a twist in the passage, and see a couple of black oozes, about 20 feet in front of you. Behind you, more oozes approach; you can't see them yet, but you can hear their slimy movement down the tunnel behind you.
*Standard action to attack
Rolls
Sinag attack, two-handed damage - (1d20+9, 1d10+8)
1d20+9 : (18) + 9 = 27
1d10+8 : (7) + 8 = 15
Rolls
Tolvihar Attack - (1d20+8, 1d20+8, 1d12+7)
1d20+8 : (1) + 8 = 9
1d20+8 : (16) + 8 = 24
1d12+7 : (9) + 7 = 16
Tolvihar Attack - (1d20+8, 1d20+8, 1d12+7)
1d20+8 : (10) + 8 = 18
1d20+8 : (16) + 8 = 24
1d12+7 : (8) + 7 = 15
Rolls
Bite Attack! - (1d20+5, 1d8+4)
1d20+5 : (16) + 5 = 21
1d8+4 : (2) + 4 = 6
Claw Attack! - (1d20+5, 2d6+4)
1d20+5 : (2) + 5 = 7
2d6+4 : (63) + 4 = 13
Rolls
Luck blade - (1d20+8, 1d6+6)
1d20+8 : (16) + 8 = 24
1d6+6 : (4) + 6 = 10
Sneak Attack - (3d6)
(533) = 11

EDIT: I checked, I'm within averages for HP.
So, from 36 you took 51 points, putting you at 0. The remaining 15 is not more than your maximum hit points. You are just unconscious and will need to make Death Saves.
For further clarification, if you had taken 72 points of damage... 36 - 72 = -36, matching HP maximum, means instant death.