Tower diving is the act of attacking an enemy champion under their own turret, knowingly tanking turret shots to secure the kill. Done well, it converts a poke advantage into a kill plus turret pressure. Done badly, it gives the enemy two free shutdowns and a free wave.
The reason most dives go wrong is that two separate turret mechanics quietly stack against you. Reinforced Armor protects the turret itself when there's no minion wave. Warming Up makes the turret's shots hit you harder the longer you stand under it. Almost every guide on the internet conflates these two. They are different mechanics with different triggers, and you cannot dive safely without understanding both.
Reinforced Armor: Why You Need a Minion Wave
Reinforced Armor is a passive on the turret that reduces incoming damage by 80%, including true damage, when no enemy minions or a Summoned Rift Herald are nearby. With no wave, you are hitting the turret for one fifth of your normal damage. Backdooring a turret with no minions next to it is, by design, almost impossible.
The activation rules are specific:
- Pets, traps, and neutral monsters do not deactivate Reinforced Armor. Tibbers, Voidlings, Heimerdinger turrets, Yorick ghouls, Shaco boxes, Krugs you somehow dragged over: none of these count.
- Only enemy minions and the Summoned Rift Herald count as eligible units.
- Reinforced Armor deactivates immediately the moment an eligible unit arrives.
- It reactivates with a 3-second delay after the last eligible unit dies or leaves.
That 3-second delay is the dive window. If you killed the wave or the wave moved off, you have three seconds where the turret is still vulnerable to full damage before its damage reduction kicks back in.
Important: Reinforced Armor is the turret's defense. It does not affect how much damage the turret deals to you. It only changes how much damage you deal to the turret. Mixing this up is the single most common mistake in tower-diving content.
Warming Up: Why the Turret Kills You Faster Than You Expect
Warming Up is the offensive mechanic. Each consecutive turret shot on a champion deals +50% bonus damage, capped at +150% (3 stacks). The effect resets 5 seconds after the last shot hits a champion. Critically, it does not reset when the turret switches targets.
What this means in practice:
- Shot 1 to a champion: base damage.
- Shot 2: +50% bonus damage.
- Shot 3: +100% bonus damage.
- Shot 4 and beyond: +150% bonus damage (capped).
The turret's resource bar shows the current Warming Up stacks. Use it. If you watch a teammate eat two shots and then you walk in, the third shot lands on you with +100% bonus damage, even though it's your "first" shot. Stacks track the turret, not the diver.
Under most outer turret AD ranges (roughly 180 to 350 based on minutes), three or four shots is enough to kill any squishy and most bruisers outright. If you bait stacks before committing, the dive window shrinks dramatically.
Reinforced Armor vs. Warming Up at a Glance
| Mechanic | Affects | Trigger | Reset / Delay |
|---|---|---|---|
| Reinforced Armor | Damage you deal to the turret | No enemy minions / Rift Herald nearby = 80% reduction active | Off instantly when minion arrives, on again 3s after last minion leaves |
| Warming Up | Damage the turret deals to you | Each consecutive hit on a champion (any champion) | Resets 5s after last shot hits a champion; does not reset on target switch |
How Turret Aggro Works
Turret aggro is governed by a priority list plus one override. The priority list, from lowest to highest, is roughly: champion, caster minion (and Wukong clones), melee minion, Mist Walkers, siege/super minion (and Yorick's Maiden), pets like Tibbers and Voidlings. The turret attacks the highest-priority enemy in range and continues attacking it until it dies, leaves the 750 attack range, or becomes untargetable.
The override is the part that kills divers: if an enemy champion deals damage to an allied champion within 1400 range of the turret, the turret immediately switches to that enemy champion, regardless of priority. The aggro switch triggers even if the damage is blocked by a spell shield, dodged, missed, deals 0 damage, or comes from a pet. Non-damaging effects like a Karthus Wall of Pain slow do not trigger it.
Two tactical implications:
- Walk in behind a wave. The turret will attack the closest melee minion first. You auto-attack the enemy champion with the wave alive: as long as you don't damage their champion within 1400 range while they're alive, the turret keeps shooting minions. The moment you damage the enemy champion, the turret swaps to you.
- Drop aggro by attacking a minion. If the turret is shooting you and you start attacking an enemy minion, the turret does not automatically switch off. You have to physically leave the 750 attack range, or the minion has to outrange you somehow, or you become untargetable. The override only triggers from damaging enemy champions, not from changing your own target.
The Pre-Dive Checklist
Before you commit, check:
- Target HP. Can you and your dive partner kill them in fewer turret shots than you can survive? A general rule: any squishy under roughly 60% HP is divable with a partner; under 40% is divable solo if you have CC and sustain.
- Their summoners. Flash, Heal, Barrier, Cleanse, and Exhaust each individually invalidate most dives. Two of these up means walk away.
- Their CC and untargetability. A Zhonya's, a Fizz E, or a Vladimir pool will turn your dive into a free turret shot for them. A 2-second stun under tower with Warming Up active is a free kill in their direction.
- Wave state. A pushed wave means the turret has minions to shoot, which means it will not switch to you instantly when you damage their champion: it has to finish its current shot. A frozen or zoned-back wave means the turret is at 750 range with one target available (you), and Warming Up will stack on you specifically.
- Your survivability. Do you have a shield, a heal, an escape, or enough HP to eat 2 to 3 stacked shots? If not, you are the kill, not the diver.
- The enemy jungler. If they are mid or top-side and you are diving bot, you are usually safe. If their position is unknown and they were recently in your half, you are not.
Champions Built to Dive
The best divers share three traits: tanky frontline stats, hard engage, and either a shield or sustain to live through Warming Up stacks.
- Maokai: long-range root from Twisted Advance, Sap Magic sustain, ult slow holds the target on the turret.
- Malphite: point-and-click ultimate engage, passive shield resets between minion shots, armor scaling lets him eat shots.
- Nautilus: hook into auto-attack root, ult lock, Titan's Wrath shield.
- Camille: hookshot through walls into stun, E shield, R isolates the target so they can't peel away from the turret.
- Diana: mobility into ult-range CC, shield, percent-HP burst that ignores tank stats from teammates trying to peel.
Assassins like Zed or Talon can dive, but they have no sustain and no shield. They get exactly one rotation to kill before turret shots delete them, which is why assassin dives almost always need a CC partner to lock the kill before the third turret hit.
Other Things That Change the Dive Math
- Melee champions deal 20% bonus damage to turrets. If you are melee and you've already committed, you are also taking the turret down faster. This matters for "kill plus plate" or "kill plus turret" dives at level 6.
- Volibear's R disables the turret. Stormbringer turns off the nearest turret entirely for the duration. A Volibear ult dive ignores Warming Up because the turret literally stops shooting.
- Bard's R puts the turret in stasis. Tempered Fate is the only crowd control that affects turrets. A 2.5-second stasis on the turret is a 2.5-second window where shots stop landing and Warming Up cannot stack.
- Janna's E shields the turret. Defensive note rather than offensive: if you are diving against a Janna, expect the turret to take less damage than you planned for.
- Outer turrets decay between 11:00 and 15:00, losing 10 armor and 15 magic resistance per minute (capped at -40 armor and -60 MR). If you are diving for the turret itself, the dive math gets significantly better post-15:00.
Common Mistakes
- Diving with the wave already crashed. Your minions are dead, the turret has only you to shoot, and Warming Up stacks land on your face from shot 1.
- Ignoring stack count. Your tank ate two shots, you walk in for the kill, and shot 3 hits you with +100% bonus damage. Watch the resource bar.
- Diving when their summoners are up. Flash plus Heal is a 6-second wall of "no" that reverses the entire fight while your shots tick.
- Confusing Reinforced Armor with Warming Up. "I can't burst the turret because Warming Up" is wrong. "The turret kills me too fast because Reinforced Armor" is wrong. Reinforced Armor gates your damage to the turret. Warming Up gates the turret's damage to you. Get this right and the rest of the math falls into place.
- Diving alone into a flash. Flash range is 400. Turret attack range is 750. The flasher exits turret range in one button press while you're still committed.
- Forgetting the 1400 aggro switch range. If you damage their champion at the edge of turret range, the turret still aggros to you. You cannot poke an enemy under tower from "just outside" without taking aggro.
The mechanical edge in tower diving is not "dive harder." It's reading the wave, the stack counter, and the summoner timer, and only committing when all three are on your side. Reinforced Armor tells you whether you can hurt the turret. Warming Up tells you how long you have before the turret hurts you. Manage both and dives stop being coin flips.
