> ## Documentation Index
> Fetch the complete documentation index at: https://mintlify.com/DarkoniusXNG/Legends-of-Dota-Redux/llms.txt
> Use this file to discover all available pages before exploring further.

# Troll Combos

> How the ability ban system prevents broken combinations in Legends of Dota Redux.

A **troll combo** is a combination of abilities that is so powerful it removes meaningful gameplay — usually by enabling infinitely spammable damage, infinite survivability, or a one-shot kill with no counterplay. Redux automatically prevents picking abilities that form a troll combo together.

## How the ban system works

Bans are enforced through two mechanisms:

### 1. ReduxBans flags

The most common mechanism. An ability's data file can include a `ReduxBans` key listing ability names it cannot be picked alongside:

```
"my_ability_op" {
    "ReduxBans"    "my_ability_normal"
}
```

There are over **200** such flags across the game's ability files. This is the primary way pairs like an OP ability and its standard counterpart are banned from coexisting.

### 2. bans.kv

`bans.kv` handles cases that cannot be expressed as a simple one-to-one pair. It contains:

| Section                        | Purpose                                                                            |
| ------------------------------ | ---------------------------------------------------------------------------------- |
| `BannedGroups`                 | Groups where **none** of the abilities can coexist — only one per group is allowed |
| `Categories > SpammableSpells` | Abilities defined as spammable that are cross-banned with other spammable spells   |
| `Categories > ToggleSpells`    | Toggle abilities with zero cooldown and zero mana cost                             |
| `BannedTowerCombinations`      | Pairs of abilities banned from being on the same tower                             |
| `noMulticast`                  | Abilities that must not trigger Multicast                                          |

## Banned groups

These groups from `bans.kv` enforce a one-per-group rule:

| Group              | Abilities                                                                                                                                                                                          |
| ------------------ | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| One-hit combo      | Enchant Totem, Walrus Punch, Boundless Strike, Culling Blade (redux), Tidebringer, Metamorphosis, Tiny Grow, Tiny Grow Redux, Overpower, Geminate Attack, Godfall, Hero One Punch, Drunken Brawler |
| Mega range         | Dragon Knight Elder Dragon Form, Take Aim, Psi Blades, Metamorphosis, Arctic Burn                                                                                                                  |
| Bash               | Time Lock, Slardar Bash, Greater Bash, Roshan Bash, Shodo Sai, Permabash                                                                                                                           |
| Unlimited stacking | All Flesh Heap variants, all Lingering Souls, all Survivor abilities, all Tomes (Angel Arena)                                                                                                      |
| Cooldown reduction | Witchcraft, Bad Juju Redux, Jingtong, Jingtong OP, Chakra Magic, Rearm, Zhanhun, Zhanhun OP, Master Magic, Veera Thrill of the Hunt                                                                |

## Notable troll combo pairs

The following specific pairs have been banned based on player feedback and balance patches:

| Ability A                   | Ability B          | Reason                                                         |
| --------------------------- | ------------------ | -------------------------------------------------------------- |
| Lifebreak Redux             | Dispersion         | Converts reflected damage into healing for absurd sustain      |
| Shadow Dance                | Shadow Dance Redux | Same ability in two forms — effectively doubled                |
| Grapeshot                   | Enchant Totem      | Enchant Totem multiplies Grapeshot damage for a one-shot       |
| Tether                      | Infest             | Tethered hero warps to the Infest target, breaking map pathing |
| Tether                      | Arcane Symbiosis   | Creates an unbreakable tether-buff loop                        |
| Lingering Souls Mana Regen  | Ball Lightning     | Infinite mana enables infinite Ball Lightning travel           |
| Rapidfire                   | Impetus            | Rapidfire procs stack Impetus hits for enormous burst          |
| Haunt / Shadow Demon Poison | Static Field       | Persistent illusions trigger Static Field on every hit         |
| The two Tiny Grows          | Each other         | Stacking both Grow abilities for extreme stat inflation        |
| Swashbuckle                 | Fury Swipes (all)  | Every Swashbuckle hit applies stacking Fury Swipes             |
| Swashbuckle                 | Arcane Orb         | Arcane Orb procs on every Swashbuckle hit                      |

## Spammable and toggle spell restrictions

Abilities classed as **spammable** (very low cooldown, near-zero mana cost) or **toggle** (zero cooldown, zero mana) are subject to additional restrictions to prevent infinite-loop gameplay. Examples include:

* Toggle: Rot, Pulse Nova, Morph (all variants), Medusa Split Shot, Muerta Gunslinger, Witch Doctor Voodoo Restoration, Nyx Burrow, Ability Wards.
* Spammable: Aphotic Shield, Mana Drain, Quill Spray, Static Remnant, Earthshaker Enchant Totem, Rocket Barrage, Abaddon Death Coil.