Sapphiron (Classic)

Sapphiron is the penultimate boss in Naxxramas. Previously an agent of the Blue dragonflight, Sapphiron was raised as a frost wyrm by Arthas Menethil to serve as the guardian of Kel'Thuzad's Chamber deep within the black citadel.

Sapphiron is located within the Frostwyrm Lair, which can only be accessed once players have defeated all 13 bosses within the four wings of the instance. Additionally, the encounter is designed to require sufficient frost resistance for all raid members, and should not be attempted otherwise.

Abilities
Sapphiron has 3,164,450 health and is immune to frost spells and taunt.

Air phase
Sapphiron takes to the air, knocking back all nearby players. This phase begins at 45 seconds and repeats every 67 seconds after Sapphiron lands, until he is reduced to 10% health and permanently grounded. Additionally, Chill and Frost Aura continue during this phase.

Composition
Sapphiron is a single-tank encounter, any additional tanks in the raid should instead dps. At least 12 healers are recommended, as well as enough mages and druids to decurse Life Drain without delay. Paladins or shaman are required due to their frost resistance buffs and should be prioritized to groups with the lowest amount of unbuffed frost resistance.

Frost Resistance
Frost Resistance is mandatory to survive Frost Aura. The recommended amount of frost resistance varies depending on the player's role and the raid's damage output, with a standard raid averaging ~150 frost resistance unbuffed. Healers should specifically avoid using too much frost resist gear as it will significantly reduce their bonus healing and mana regen and compromise their ability to keep the raid healed. Greater Frost Protection Potion and Juju Chill are required consumables.

Encounter Tips

 * Pre-pot and use Greater Frost Protection Potion on cooldown.
 * Keep spread during phase one to avoid blizzards spawning on groups of people. Chill's damage is not resistable and will two-shot any non-tank. The -65% snare applies immediately upon spawn, making it very difficult to escape before the damage hits. The snare cannot be dispelled.
 * Ensure healers and decursers are assigned locations spread throughout the raid, and decurse quickly to prevent Sapphiron from healing excessively.
 * Remain spread out at the start of the air phase and ensure that no one is within 10 yards of each other. Move to the ice blocks only after the third icebolt cast.
 * Moving to an iceblock too early can cause another icebolt to hit a group of players, as well as unnecessarily stacking iceblocks.
 * Moving too early may also spawn a blizzard on the iceblock, which will quickly kill everyone hiding behind one.

Trivia

 * Fists of the Unrelenting was initially present during PTR testing but removed before Patch 1.11.0 released. This item was later added to Sapphiron's drop table with Patch 2.0.3, and is unavailable in  Classic.
 * The first two items named after him, Sapphiron Drape and Sapphiron's Scale Boots, have been available since the original release of World of Warcraft (over a year and a half before Saphhiron's first appearance in-game).

Quotes

 * Outro
 * yell
 * yell
 * yell
 * yell
 * yell