Mythic mode: Icecrown Citadel [WoTLK 3.3.5a]

Activation:

- You need a keystone, received for a quest. Quest can be accepted from Chromie NPC next to a dungeon entrance (Shortly about the quest: You need to kill 3 Deathbound Ward at the same time (not more than 10 seconds interval)).
- Keystone duration - 1 real hour.
- Any raid member can activate mythic mode, activation lever is in a boss room. (You need to be in a 10/25 people heroic raid mode).
*Attention! You can not disable mythic mode after activation.

Boss features:

- Strength affix +25% damage, +25% health points.
- Every cleave hit applies a wound on tanks (up to 20 stacks).
- Boss room if filled with skulls after mode activation.
- Deathbound Ward analogues will occasionally spawn from skull piles. They have the same spells as original Deathbound Wards.
- During Bone Storm random Skull Piles will burn in blue flame, dealing damage.

Activation:

- You need a keystone, received for a quest. Quest can be accepted from Chromie NPC next to Oratory of the Damned entrance (Shortly about the quest: Bring Chromie 600 Frostweave Cloth 3 древнейших саронита).
- Keystone duration - 1 real hour.
- Any raid member can activate mythic mode, activation lever is in a boss room. (You need to be in a 10/25 people heroic raid mode)
*Attention! You can not disable mythic mode after activation.

Boss features:

- Strength affix +25% damage, +25% health points, melee zone debuff -100 Shadow Resistance.
- Trash before the boss stays passive. Trash activates one by one, each wave activates 1 more npc from both sides in 25, and 1 from one side in 10 people mode.
- Boss has permanent (https://wowhead.com/spell=17695) aura. Range decrease by this aura is 3m (melee zone).
- Lady Deathwhisper uses all spells, learned from Kirin Tor and changes appearance depending on damage received:
- More than 50% mana and more than 100% health points - (https://wowhead.com/spell=34204)
- More than 100% health points and less than 50% mana - (https://rwowhead.com/spell=34203)
- Less than 1% mana and more than 50% health points - (https://wowhead.com/spell=34202)
- Less than 1% mana and less than 50% health points (https://wowhead.com/spell=34205)

When summoned NPC die Vengeful Spirits spawn, besides those, that spawn during 2 phase by default.
Also summoned Vengeful Spirit restores 1% health and 1% mana of Lady Deathwhisper for every player hit by an explosion.

Spells:

Frostbolt, cast by a boss, can not be interrupted.
Starting from second phase, every 15 seconds Lady Deathwhisper casts (https://wowhead.com/spell=27819) either on a player with the lowest mana amount, or on several players but every 30 seconds.

Activation:

- Activation is done during a dialogue with Saurfang/Muradin, players select which mode to acrivate. If raid wipes - everything is reset and you can select heroic.
- Any raid member can activate mythic mode, activation lever is in a boss room. (You need to be in a 10/25 people heroic raid mode).

Boss features:

- Strength affix +25% damage, +25% health points.
- Summons Long-Forgotten Shade, that applies https://wowroad.info/?spell=40251 on selected players.
- When boss gains 100 energy, Unholy Axe is summoned, axe attack removes https://wowroad.info/?spell=40251 from a target, healing of an axe also heals Saurfang. Axe attacks players and has blood effects similar to a boss.
- If https://wowroad.info/?spell=40251 is not removed in time, player gets controlled and summons 4 Shadowy Constructs.

Activation:

- You need a keystone, received for a quest. Quest can be accepted from Chromie NPC next to The Plagueworks entrance (Shortly about the quest: Kill Stinky, none of the raid members should wear helmet).
- Keystone duration - 1 real hour.
- Any raid member can activate mythic mode, activation lever is in a boss room. (You need to be in a 10/25 people heroic raid mode)
*Attention! You can not disable mythic mode after activation.

Boss features:

- Strength affix +25% damage, +25% health points.
- After spore removal from players under this effect, they will be silenced for 5 seconds (magic school, can be dispelled)
- Every gas breathe summons orange slime from random bulb. Every new Pungent Blight will increase amount of summoned slimes.
- Slimes can be slowered (not more than 50%). If a slime reaches player, it heals the boss by 8% (4% in case of heal reduction).
- Boss casts a spell - Malleable Goo, which spawns puddles. (2 in 10 heroic, 3 in 25 heroic)

Activation:

- Chromie is waiting for you in a corridor before the boss, she allows you to select normal or mythic mode to start.
- You need to defeat boss guards quickly after you launch the mode.
- Only raid leader can activate mythic mode.
Attention! You can not disable mythic mode after activation.

Boss features:

- Bosses became higher and stronger. Health, damage and healing increased by 25%.
- AoE damage done to bosses decreased by 95%.
- Disease damage decreased by 50%.
- Blood-Queen Lana'thel no longer flies away, but helps with spells: https://wowroad.info/?spell=71340, https://wowroad.info/?spell=71264, https://wowroad.info/?spell=73070. Lana'thel is invulnerable.

Activation:

- Chromie is waiting for you in a corridor before the boss, she allows you to select normal or mythic mode to start.
- Any raid member can activate mythic mode, activation lever is in a boss room. (You need to be in a 10/25 people heroic raid mode).
Attention! You can not disable mythic mode after activation.

Boss features:

- Boss health points reduced to 25%.
- Increased portal amount.
- After entering a portal players meet cursed soul part of Valithria Dreamwalker and hold it while others collect emerald energy orbs.
- Getting every energy orb buff summons Nightmare Whelp, attacking player and applying debuff.
- The more you heal Valithria Dreamwalker, the more rageful fight with her cursed soul will be.

for Icecrown Citadel 10/25 heroic:

Each raid member gets:

- https://wowroad.info/?item=49426 - 4 pcs
- https://wowroad.info/?item=22484 - 3 pcs
- https://wowroad.info/?item=38165 - 2 pcs

In 10 heroic mode you can get ONE guaranteed items and another one with 50% chance
In 25 heroic mode you can get TWO guaranteed items and another one with 50% chance from the list below: