Heimerdinger vs Senna
Build vs Senna
The champion's reference build, for lack of enough games in this matchup
Recommended items for Heimerdinger: Blackfire Torch, Liandry's Torment, Zhonya's Hourglass, Sorcerer's Shoes, Rabadon's Deathcap, Void Staff, Morellonomicon, Banshee's Veil.
Starting items
Core build
Standard
Anti CC
Other options
Power Spikes
Strength by game phase
Senna's abilities
Passive, spells and ultimate
When units die near Senna, their souls are periodically trapped by the Black Mist. Senna can attack these souls to free them, absorbing the Mist that held them in death. Mist fuels her Relic Cannon's power with increased Attack Damage, Attack Range, and Critical Strike Chance. Attacks from Senna's Relic Cannon take longer to fire, deal bonus damage, and briefly grant her a portion of her target's Move Speed.
Cooldowns
Cooldowns by spell rank
| Level | Q | W | E | R |
|---|---|---|---|---|
| 3 | 15s | 11s | 26s | – |
| 6 | 15s | 11s | 26s | 2m20 |
| 9 | 15s | 11s | 26s | 2m20 |
| 11 | 15s | 11s | 26s | 2m |
| 16 | 15s | 11s | 23s | 1m40 |
| 18 | 15s | 11s | 20s | 1m40 |
Playing as Heimerdinger
Tips to maximize your impact
- Plant your turrets and stay close
Place your turrets with H-28 G Evolution Turret (Q) where you want to fight, then stay close: if you move too far away, they deactivate after 8 seconds.
- Aim the center of your grenade
Aim the center of CH-2 Electron Storm Grenade (E) at your target: only enemies in the center are stunned, and hitting a champion fully charges your nearby turrets.
- R then W for the kill
To kill a target, cast UPGRADE!!! (R) then Hextech Micro-Rockets (W): you fire 4 waves of rockets instead of one.
- Giant turret for objectives
For a teamfight or an objective, cast UPGRADE!!! (R) then H-28 G Evolution Turret (Q): the turret lasts 8 seconds, slows, deals area damage and is immune to CC.
Playing against Senna
How to counter and exploit weaknesses
- Punish her when she goes for a soul
Take a trade when she steps up for a soul: each bit of Mist she absorbs with Absolution (passive) gives her AD, attack range and crit.
- Spread out if her embrace hits you
If Last Embrace (W) hits you, move away from your allies: after a short delay, you and nearby allies are rooted.
- Target her when she steps up
If you can engage, target her when she steps up for Piercing Darkness (Q): she has no dash to get away.
- Beware the wraiths
Back off when her team disappears into Curse of the Black Mist (E): her allies are camouflaged there, then fast and unselectable.
Other Heimerdinger matchups
Patch 16.21.1