Knockdown
active Documented When to buy Knockdown Knockdown +35s Cooldown +0.1s Cast Delay +2s Stun Delay +0.5s Stun Duration +75 Bonus Health +5% Ability Range +5% Radius
Buy whenever an enemy fights from the sky — it answers flying and airborne heroes and channelled aerial ultimates.
When to skip Knockdown
The 2s delay makes it easy to pre-empt against grounded targets; it is a poor generic Stun.
Gotchas
The mechanics people most often get wrong about this item.
- Gravity effect increased from +50% to +100% on 6 Mar 2026
- The Stun from Knockdown is NOT shortened by Debuff Resist (the wiki notes this may be unintended)
- Stun duration keeps extending while the target falls
Problems it answers
- Air mobility — “They fight from above and I cannot touch them.”
- Gap closers and escapes — “They reach me whenever they want and leave when they want.”
- Channelled ultimates — “Their ultimate wins the fight on its own.”
- Long-range poke — “I get chipped down before the fight even starts.”
- Backline assassination — “Their carry deletes my squishies.”
Heroes that make this worth a slot
Heroes whose kit creates the problems Knockdown answers. This is derived from kit properties, not from measured build results.