Heroes Never Die / Upside Down
The Wind Burner
1 x The Wind Burner
Type: Castle
Related Hero: Sakoshi's Castle
Faction: Kurumo
Health: 20
Exhaust, Pay 1 mana: Choose one: Draw a card or Assault 1.
You must have Sakoshi and 39 other cards. You may include any SHADOWS and you cannot include any ROYAL GUARD nor Corjof.
1 x Sakoshi
Type: Heroic Ally - Shadows
Faction: Kurumo
Cost: 4
Health: 3
Attack: 3
Rarity: Legendary
Play: Guerrilla 2.
Fight: Sakoshi deals 1 damage to a monster of to the portal.
1 x Yami
Type: Heroic Ally - Bushido
Faction: Kurumo
Cost: 5
Health: 4
Attack: 5
Rarity: Legendary
Play: For the remainder of the turn, an ally gains Elusive 1.
Fight, Pay 1 mana: Yami and her neighbors gain +1 armor for the remainder of the turn.
2 x Thunder Cavalry
Type: Ally - Bushido
Faction: Kurumo
Cost: 3
Health: 3
Attack: 3
Rarity: Rare
You may deal 3 damage to your castle to reduce Thunder Cavalry's mana cost by 1.
Heroic 2.
2 x Bushido of the Rose
Type: Ally - Bushido
Faction: Kurumo
Cost: 2
Health: 2
Attack: 2
Rarity: Base
Heroic 2.
2 x Cicada Shadows
Type: Ally - Shadows
Faction: Kurumo
Cost: 3
Health: 2
Attack: 3
Rarity: Rare
You may deal 3 damage to your castle to reduce the mana cost of Cicada Shadows by 1.
Fight: If Cicada Shadows is engaged, Assault 1.
2 x Tribe Warriors
Type: Ally - Tribesmen
Faction: Taulot
Cost: 4
Health: 3
Attack: 2
Rarity: Rare
Play: The monster engaged with Tribe Warriors gains -1 attack and -1 health for the remainder of the turn.
Fight: Guerrilla 1.
2 x Scarifier
Type: Ally - Tribesmen
Faction: Taulot
Cost: 2
Health: 4
Attack: 1
Rarity: Rare
Play: You may destroy an ally. If you do, a non-epic monster gains -1 attack and -1 health for each "Ally - Tribesmen" in your discard pile for the remainder of the turn.
Exhaust: Scarifier gains 2 
. Return a non-hero "Ally - Tribesmen" from your discard pile to your hand.
3 x Canopy Hunters
Type: Ally - Tribesmen
Faction: Taulot
Cost: 2
Health: 1
Attack: 1
Rarity: Base
Destroyed: Guerrilla 1.
3 x Stalker Pack
Type: Ally - Tribesmen
Faction: Taulot
Cost: 3
Health: 2
Attack: 2
Rarity: Base
Fight: Guerrilla 1.
3 x Echoed Saboteur
Type: Ally - Rogue
Faction: Nupten
Cost: 2
Health: 2
Attack: 2
Rarity: Base
Fight: The monster engaged with Echoed Saboteur gains -1 attack for the remainder of the turn.
Elusive 1.
1 x Combustion
Type: Spell
Faction: Kurumo
Cost: 2
Rarity: Mythic
Play: Combustions deals 2 damage to a monster in a lane. If Combustion destroys that monster, it deals 2 damage to one of its neighbors.
2 x Dragon Punch
Type: Spell
Faction: Kurumo
Cost: 2
Rarity: Rare
Play: For the remainder of the turn, an ally gains +3 attack, trample and the text "This ally may deal trample damage to a minion instead of the Portal."
3 x Death Grasp
Type: Spell
Faction: Taulot
Cost: 2
Rarity: Base
Play: A monster in a lane gains -2 attack and -2 health for the remainder of the turn.
3 x Shadow of Death
Type: Spell
Faction: Nupten
Cost: 1
Rarity: Base
Play: A monster in a lane gains -2 attack for the remainder of the turn.
Draw a card.
3 x Strike Terror
Type: Spell
Faction: Nupten
Cost: 2
Rarity: Base
Play: Put a non-epic monster on top of the outsider pile.
Draw a card.
1 x Star Piercer
Type: Tower
Faction: Kurumo
Cost: 3
Rarity: Mythic
Play: Star Piercer gains 3 
.
Exhaust, Star Piercer gets 1 : Guerrila 2.
2 x Stone Pillar
Type: Tower
Faction: Taulot
Cost: 2
Rarity: Rare
Play: Stone Pillar gains 2 .
Exhaust: Stone Pillar gains 1 . Then, a monster gains 1 and 1 [weaken].
1 x Katana of the Dusk
Type: Attachment - Weapon
Faction: Kurumo
Cost: 2
Rarity: Mythic
Can only be attached to an "Ally - Bushido".
Attached ally gains +2 attack and the text "After resolving the first strike of a turn, attached ally gains 1 and strikes again."
3 x Lightning Naginata
Type: Attachment - Weapon
Faction: Kurumo
Cost: 1
Rarity: Base
Attached ally gains +2 attack.
The goal of this deck was to be able to knock out two achievements in one match -- Heroes Never Die and Upside Down. I leaned really heavily into debuff effects to preserve Yami on the combo turn and Guerilla units to keep the Minions from destroying my castle. Got it on my second try on the middle difficulty against Nightmare deck with The Dreaming Matriarch Outsider. Gonna try it on some harder difficulties later.
In general though, I think this deck is pretty strong! It's very fun to play. Enjoy!