We’re not responsible, someone has loose lips and an even looser camera. We merely report the news. We hope in the future, Konami has less problems with these sorts of leaks. Thank, you, and onto news.

UPDATE: Blurry pic and blurrier (unconfirmed) effect of the Burning Abyss Ritual Spell added.

Cagna, Malebranche of the Burning Abyss
Level 3 DARK Fiend-Type Effect Monster
ATK 1500
DEF 300
If you control a monster that is not a “Burning Abyss” monster, destroy this card. You can only use 1 of the following effects of “Cagna, Malebranche of the Burning Abyss” per turn, and only once that turn.
• If you control no Spell/Trap Cards: You can Special Summon this card from your hand.
• If this card is sent to the Graveyard: You can send 1 “Burning Abyss” Spell/Trap Card from your Deck to the Graveyard.

Libic, Malebranche of the Burning Abyss
Level 3 DARK Fiend-Type Effect Monster
ATK 1300
DEF 700
If you control a monster that is not a “Burning Abyss” monster, destroy this card. You can only use 1 of the following effects of “Libic, Malebranche of the Burning Abyss” per turn, and only once that turn.
• If you control no Spell/Trap Cards: You can Special Summon this card from your hand.
• If this card is sent to the Graveyard: You can Special Summon 1 Level 3 DARK Fiend-Type monster from your hand, but its effects are negated.

Nephe Shaddoll Fusion/Fusion Sombraneca Nephe
Equip Spell Card
Declare 1 Attribute. Equip only to a “Shaddoll” monster, and the equipped monster becomes a monster of the Attribute you declare. During your Main Phase: You can Fusion Summon 1 “Shaddoll” Fusion Monster from your Extra Deck using monsters in your hand or on your side of the field as Fusion Materials, including the equipped monster. You can only use this effect of “Nephe Shaddoll Fusion” once per turn.

Sources:
“Juane”
YGOILuminate on Facebook
Scorpion404/a contact of Scorpion404, from 4Chan’s /vg/ Dueling Network General threads