After a change to its mechanics in 9.24, the Underworld origin has grown in popularity over the weeks, to the point of becoming one of the most reliable and popular comps.
- Read also | Our tier-list of compositions
- Read also | Our guides on TFT set 2
Composition 6 Hells / Defender
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| Office (1) | Varus (2) | Kindred (3) | Anna (4) | Fire (4) | Amumu (5) | Thresh (2) | Nautilus (3) |
 Hells (6) |
Spells and critical hits from Underworld champions burn 3 cells below the target and deal 140% damage over 5 seconds. |
 Defender (2) |
Defenders gain +150% Armor. |
 Prowler (2) |
Rangers have an 35% chance of doubling their attack speed every 3 seconds. |
 Ocean (2) |
Every 4 seconds, all allies gain +15 mana. |
This build is lucky enough to work with a lot of cheap early-game units (Zyra, Diana, Varus...) which allows him to pass level 8 quickly to find the master piece: amumu. She benefits from excellent area damage, especially if the fights last long enough.
Preferred items
Kindred |
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 Iron Solari Medallion |
Iron Solari Medallion |
 Seraph's Embrace |
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The most important object of the composition Underworld and the Iron Solari Medallion. Since it has a lot of damage-dealing champions and relatively few tanks, this item overcomes the team's lack of defensive abilities. It also makes for a good early/middle game.
They will usually be equipped on Kindred, but other champions can use it. Her third item will depend on what you have at your disposal: Seraph's Embrace allows her to ult regularly, but items like |
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hand of justice ou 
Ultra-fast cannon may also work, for example.Annie |
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 Guardian angel |
 Zephyr |
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Le Zephyr isn't particularly an item that synergizes with this comp, but it's extremely strong and benefits a team that wants long-lasting fights (to get maximum burn damage applied). It will generally be equipped on a unit that you can easily change places, Annie being the first concerned. She can also use a Guardian angel which will usually allow him to summon a Tibbers, then a second when the first is dead. It also allows you to delay fights even more. As a third object, Annie can use a |
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Precious Gauntlet so that Tibbers deal big critical hits.amumu |
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Guardian angel |
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amumu will act as the team's main tank in the late game, and he benefits a lot from theGuardian angel in order to use his ultimate 1 or 2 times in the fight. It can be equipped with other defensive items: |
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dragon claw, 
thorny coat, 
Warmog, living armor, 
Gripper trap...Finally, objects such as 
Thief's Gloves or other defensive items can be used on Nautilus for example, to make it more tanky and give your carries more time to apply their damage.
Start of the game and progress
The start of the game is relatively simple with this composition: it is quite easy to obtain 3 champions Underworld from the start (Varus, Zyra, Diana, Kindred...) and add a frontline to them. This will ideally consist of Thresh et Nautilus, for bonuses Défenseur et Ocean, but champions Wood (maokai, Ivern) or others Défenseurs may do the trick, especially Nasus which is very strong on the first levels.
For objects, Iron Solari medallions are your priority and can be equipped on Zyra ou Diana at the start of the game, even if it means selling them later to give them to Kindred. THE'Guardian angel and Zephyr can also go to a substitute unit while you find Annie / amumu.
Since this comp takes advantage of good early game units and tries to build Iron Solari medallions, it will not be uncommon to have a winning streak in the first rounds. If you have several level 2 champions, it may be interesting to level up to level 4 directly after PVE rounds and level 5 when you are at 2/10 or 6/10 XP to keep winning.
Then, it will be a question of capitalizing on this series of victory to save thoroughly: this composition absolutely needsamumu to work, which is why it's usually worth getting to level 8 quickly. To do this, go up to 50 gold and use all your surplus gold to buy XP. Ideally, you can pass level 8 in round 4-3 (two rounds after Wolves). At this point, you'll want to start rolling a little each round (without totally sinking your economy) to find Amumu level 2 if possible.
In the meantime, you will still need to benefit from 3 Underworld and Défenseurs, and add other temporary units: malphite + Taliyah for a bonus Mountain, two others Défenseurs at level 7, another Summoner if you have Zyra et Annie... The goal is to stay competitive before going into 6 Hells with amumu and use your early game strength to tank losses later on without going too low in HP.
Endgame and transitions
As mentioned earlier, this composition can use several replacement units: Diana can replace Brand, although the latter is much stronger than her, but Qiyana can also be a very interesting choice in the middle game if you play on a map Underworld which gives it this trait.
Another variation is to drop one of your Défenseurs for the benefit of Yorick for the bonus 3 Summoners, which makes it possible to have invocations much more difficult to kill (in particular Tibbers and his beings of light). The addition of Lux Hells is also very interesting, since it allows you to get rid of 2 weaker units (often Zyra et Varus) and gives you many more possibilities.
This composition is one of those that benefits the most from 9 level : this allows you to find amumu level 2 more easily, but also to add various interesting bonuses: malphite for 4 Défenseurs and more control, especially in the face of Assassins, or replace Thresh by Nami and add Janna for the bonus Mystique It front of Magi et Shadows.
The acquisition of 
Ashes of Hell at some point in the game also allows more freedom, and allows for example to add Nami et Janna instead of Thresh et Zyra without passing level 9, with Nami en Underworld. At level 9 it is also possible to just add a Singed with this item (if you have it level 2) which will then wreak havoc, especially if it also has a 
morellonomicon.
If this composition is too contested and you are unable to find your units, it is possible to pivot to the comp Mage / Ocean quite easily, since she also uses a lot of the same champions and items. Another possibility is to focus on Kindred to instead play the composition Shadows / Summoner.
Positioning Tips
Since this composition is based on two (ideally) Iron Solari medallions, it is important to have your 5 units lined up to get the most out of it. Yes Annie will generally be the unit of choice to carry the Zephyr, it will always be necessary to position it accordingly in relation to the opposing carries, even if it does not receive the shield.
If your amumu is only 1 level, never put him in the front line at the risk that he dies before launching his ultimate. It will then have to be indented behind Thresh et Nautilus the time to have it level 2 or to have a Guardian angel above.
This positioning can be modified according to the Elementary boxes. This composition works best on Hell cards, which allows to have Qiyana Hells which will be a great mid-game unit. The ocean cards will also be interesting, since the mana will be useful for your champions to cast their spells more quickly (Annie, Brand, amumu...)
