Heroes of the Storm II: Thread. Augmented. Logical Decision

[Keltest]

That's pretty much every mage in the game.

KT more than most. all his abilities have windup time of some sort, and his stun requires two targets available. Jaina can slow on any ability, and cone of cold has a wide AoE. Kael has a skillshot stun. Chromie has her time traps. KT only has a very telegraphed root with a delay on it.

To borrow a phrase, a gold tracer will 1v1 a GM Kel'Thuzad 10 out of 10 times, that's how skewed that matchup is.