The Nighthold: Gul'dan

If you are like me that sometimes just need to know what's for that "start quest..." item in your inventory,
here a Quick check: (Alphabetical order)

[item=140172] -> [quest=43917] -> The Nighthold: Elisande
[item=143328] -> To Battle! -> Any Battleground
[item=139471] -> Black Rook Hold: The Lord of Black Rook Hold -> Black Rook Hold
[item=139476] -> Neltharion's Lair: Into Neltharion's Lair -> Neltharion's Lair
[item=139479] -> Assault on Violet Hold: Into the Violet Hold -> Violet Hold
[item=139478] -> Vault of the Wardens: Into the Vault of the Wardens -> Vault of the Wardens
[item=139474] -> [quest=43552] -> Eye of Azshara
[item=139480] -> The Emerald Nightmare: Il'gynoth -> Emerald Nightmare: Il'gynoth
[item=139477] -> The Arcway: Into the Arcway -> The Arcway
[item=143479] -> [quest=45180] -> Ashran's Battle (Draenor)
[item=139472] -> Court of Stars: Into the Court of Stars -> Court of Stars
[item=140171] -> The Nighthold: High Botanist Tel'arn -> The Nighthold: High Botanist Tel'arn
[item=142340] -> Return to Karazhan: The Tower of Power -> Karazhan
[item=139457] -> Halls of Valor: Odyn's Challenge -> Halls of Valor
[item=140147] -> The Nighthold: Vaults -> The Nighthold: Trilliax
[item=147509] -> Tomb of Sargeras: The Deceiver -> Tomb of Sargeras: Kil'jaeden
[item=140177] -> The Nighthold: Gul'dan -> The Nighthold: Gul'dan
[item=140163] -> The Emerald Nightmare: Fall of Cenarius -> Emerald Nightmare: Cenarius
[item=139473] -> Darkheart Thicket: Into Darkheart Thicket -> Darkheart Thicket
[item=140164] -> The Emerald Nightmare: Xavius -> Emerald Nightmare: Xavius
[item=147505] -> Tomb of Sargeras: The Fallen Avatar -> Tomb of Sargeras: Fallen Avatar
[item=139475] -> Maw of Souls: Into the Maw of Souls -> Maw of Souls
[item=147501] -> Tomb of Sargeras: Free The Tormented -> Tomb of Sargeras: Desolate Host

[mission=1306] > [item=140173] > this quest > [item=140148]

There are four difficulty levels for all of the above, this is Raid Finder.