In Heroic difficulty four slimes answer Yor'sahj's call.

• Vapeurs fusionnantes – The blood globules emit a fusing vapor when damaged below 50% health that heals all other active globules for 5% of their maximum life.When one globule dies, the surviving globules completely fuse and gain immunity to all forms of damage.
• Globule luminescent – When a Glowing Globule reaches Yor'sahj, it infuses Yor'sahj with the Glowing Blood of Shu'ma.

  • Sang luminescent de Shu'ma – Yor'sahj's Void Bolt now hits all nearby targets for 33300 to 38700 Shadow damage in addition to the primary target component, Yor'sahj uses his abilities twice as often, and his attack speed increases by 50%.
• Globule cobalt – When a Cobalt Globule reaches Yor'sahj, it infuses Yor'sahj with the ability to summon Mana Voids.

  • Vide de mana – A Mana Void leeches all the mana from every ranged spell caster and healer, storing the mana within itself. Destroying the Mana Void evenly returns the total of the leeched mana via Mana Diffusion to players within 30 yards.
  • Vide de mana – A Mana Void leeches all the mana from every ranged spell caster and healer, storing the mana within itself. Destroying the Mana Void evenly returns the total of the leeched mana via Mana Diffusion to players within 100 yards.
• Globule cramoisi – When a Crimson Globule reaches Yor'sahj, it infuses Yor'sahj with the Searing Blood ability.

  • Sang brûlant – Yor'sahj sears the blood of three random players, inflicting a base of 35000 Fire damage. The further the target stands from Yor'sahj, the greater shock received from the blast.

    In 25 player raids, Yor'sahj sears the blood of eight random players.

• Globule sombre – When a Dark Globule reaches Yor'sahj, the corruption of the blood seeps out into the Maw of Shu'ma. This vile corruption then periodically creates Forgotten Ones that attack the players.

  • Oublié – These creatures fixate on a random target.

    • Entaille psychique – The Forgotten One emits a wave of psychic force at its current target, inflicting 55770 to 58630 Shadow damage.
• Globule acide – When an Acidic Globule reaches Yor'sahj, the Maw of Shu'ma infuses with the acidic blood and stimulates further Digestive Acid production.

  • Acide digestif – Digestive Acid periodically secretes from the stomach lining, inflicting 58500 to 61500 Nature damage to a player and nearby allies within 4 yards.
  • Acide digestif – Digestive Acid periodically secretes from the stomach lining, inflicting 58500 to 61500 Nature damage to a random player.
• Globule d’ombre – When a Shadowed Globule reaches Yor'sahj, it infuses Yor'sahj with the Deep Corruption ability.

  • Corruption profonde – Yor'sahj's Deep Corruption spreads to every player, causing every fifth healing or absorbtion effect cast on a player to trigger a violent detonation, inflicting 46250 to 53750 Shadow damage to all players.