Here are the bans:
EFC: You can check per clan here - https://www.urban-rivals.com/game/gamemodes/elo.php. What's also recommended is when you're in your collection, select the Type EFC deck format and it'll automatically remove all the cards banned in EFC from your collection so you cannot add them to your deck.
DT T1: Mechakolos Cr, DJ Korr Cr, General Mt, Raven, Kolos Cr, Emeth Cr, Lyse Teria Cr, Vickie Cr, Kiki Cr, GraksmxxT Mt, Jackie Cr, Clover, Clover Noel, Jeena, Uranus, Kalindra Cr, Shann Cr, Sabia, Spiaghi Cr, Arno, Ymirah Cr, Avola, Quetzal Cr, Spyke Mt, Alec Mt, Phoebe, Beck - Nena, Maana Cercei, Dr Norton Cr, Gil Cr, Serafina, Behemoth, Judge Lynch, Nemo Mt, Roderick, Sue, Shinobi, Schatzi, Zaveli, Maximus, Dollum, Scarlacc, Death Adder, Floyd, Isatis, Mimmo, Sopiket, Lehane, Lea, Smokey Mt, Sobek, Saltsberg, Zatman Cr, Slade, Martha, Scooty, Hawkins Cr, Sentenza, No Love, Bruno, Ed 13, Elvira, Nero, Gruber, McLain, Moukrok, Angelo, ZRobbie, McLayton, Missandei, Crook, Figaro, Robb Cr, Pandora, Fairbanks, Mim, Flanagan, Arkn, Bambino, Mok, Draheera, Oscar, Atkinson, El Exotico, Bridget, Saitamurai, Death Wing, Ravebot, Thormund, Kruger, Helsa, Jessie, The Rocktana, John, Oxana, Melody, Volkan Cr, Consuelo, Ennio, Goure, Lizbeth Cr, Zlatar, Kinjo (Zlatar and Kinjo are only in due to shift)
DT T2: DJ Korr Cr, Mechakolos Cr, General Mt, Raven, Kolos Cr, GraksmxxT Mt, Jackie Cr, Clover, Clover Noel, Jeena, Uranus, Kalindra Cr, Shann Cr, Sabia, Spiaghi Cr, Arno, Ymirah Cr, Spyke Mt, Phoebe, Beck - Nena, Maana Cercei, ImperaSloane Cr, Rattle, Miyo, Brutus, Serafina, Behemoth, Dr Norton Cr, Fisty Cent, Nemo Mt, Roderick, Raam, Schatzi, Zaveli, Judge Lynch, Joy, Shinobi, Oon Cr, Nekron, Butcher Braxton, Maximus, Death Adder, Dookor, Mona Cr, Vickie Cr, Copper Cr, Marco Cr, Dollum, Sopiket, Scarlacc, Aegis, Sobek, Saki, Ursula, Hawk, Slade, Captain Rescue, Fairbanks, Emeth Cr, Shakra, Koshiro, Marshal Cr, Goure, Sentenza, No Love, Coby, McLayton, Lyse Teria Cr, Nero, Gruber, McLain, Moukrok, Bruno, Barden, Blast, Missandei, Crook, Aamir, Pandora, Kompact, Ackh, Glover, Comanche, Romana, El Exotico, Vholt, Ambre, John Doom, Morphun, Hugo, Bridget, Saitamurai, Atkinson, Natasha, John, ZRobbie, Zoe, Faiza, Timanov, Quetzal Cr, The Rocktana, Melody, Volkan Cr, Sioux, Ennio, Zlatar, Kinjo (Zlatar and Kinjo are only in due to shift)
Its much easier just to select the corresponding deck presets though instead of trying to memorise all the bans though