Basilisk Giant Rhinoceros

This mob is indifferent to Slow effects, because his first attack is , closing the distance to you in an eyeblink. Spells like that reduce Movement Speed will not work as intended.
FYI: DOES work, so I assume that all Charm/Root/Stun effects will work, but Movement Speed reductions definitely does not.
"Alas, the last, distant cousin of the Unicorn!"