The game of Duel Of The Duplicates\r<br>\r<br>Characters\r<br>Ben Tennyson\r<br>Rook Blonko\r<br>Argit\r<br>Blukic\r<br>Driba\r<br>Fistina\r<br>Solid Plugg\r<br>Villains\r<br>Albedo (first present day re-appearance)\r<br>Ultimate Albedo (first appearance)\r<br>Techadon Weapon Master Number 13\r<br>Techadon Robots (first re-appearance)\r<br>Khyber\r<br>Aliens Used\r<br>By Ben\r<br>Four Arms (x2)\r<br>Big Chill (x2)\r<br>Nanomech\r<br>Eye Guy (x2)\r<br>Armodrillo (cameo)\r<br>Water Hazard\r<br>Terraspin\r<br>Shocksquatch\r<br>By Albedo\r<br>Wildvine (x2)\r<br>Humungousaur (x2)\r<br>Big Chill\r<br>Goop\r<br>Ultimate Humungousaur (first re-appearance)\r<br>Ultimate Echo Echo (first re-appearance)\r<br>Ultimate Spidermonkey (first re-appearance)\r<br>\r<br>A Fistful of Brains is the thirty-eighth episode of Ben 10: Omniverse.\r<br>Major Events\r<br>Khybers Panuncian Pet makes his debut.\r<br>Azmuth is kidnapped by Khyber and Albedo.\r<br>Characters\r<br>Ben Tennyson\r<br>Rook Blonko\r<br>Max Tennyson\r<br>Azmuth (cameo)\r<br>Magister Patelliday (cameo)\r<br>Villains\r<br>Khyber\r<br>Khybers Panuncian Pet (first appearance)\r<br>Albedo\r<br>Ultimate Albedo\r<br>Other\r<br>Wild Slamworm\r<br>Aliens Used\r<br>By Ben\r<br>Cannonbolt (accidental transformation; intended alien was Way Big)\r<br>Ditto\r<br>Astrodactyl (accidental transformation; intended alien was Way Big)\r<br>Eye Guy\r<br>Perk Upchuck (cameo)\r<br>Goop (cameo)\r<br>Shocksquatch\r<br>Crashhopper\r<br>Diamondhead\r<br>Feedback (accidental transformation; intended alien was Way Big)\r<br>By Albedo\r<br>Brainstorm\r<br>Albedos true form (x2)\r<br>Ultimate Spidermonkey\r<br>Ultimate Humungousaur\r<br>By Khybers Panuncian Pet\r<br>Crabdozer\r<br>Omnivoracious\r<br>Terroranchula\r<br>Slamworm\r<br>Hypnotick\r<br>Tyrannopede\r<br>Mucilator\r<br>Buglizard\r<br>Vicetopus\r<br>\r<br>Major Events\r<br>Atomix makes his debut (accidentally unlocked by Azmuth).\r<br>Ultimate Gravattack and Ultimate Articguana make their debuts.\r<br>Ultimate Panuncian makes his debut.\r<br>Albedo transforms into a clone of 11 year old Ben.\r<br>Omnitrix Aliens Debuts\r<br>Atomix (first appearance)\r<br>Ultimatrix (Recreated) Aliens Debuts\r<br>Ultimate Articguana (first appearance)\r<br>Ultimate Gravattack (first appearance)\r<br>Nemetrix Alien Debut\r<br>Ultimate Panuncian (first appearance)\r<br>Characters\r<br>Ben Tennyson\r<br>Rook Blonko\r<br>Max Tennyson\r<br>Azmuth\r<br>Gwen Tennyson\r<br>Kevin Levin\r<br>Zed\r<br>Molly Gunther\r<br>Villains\r<br>Albedo\r<br>Ultimate Albedo\r<br>Khyber\r<br>Khybers Panuncian\r<br>Ultimate Panuncian (debut)\r<br>Vilgax (past; dream)\r<br>Aliens Used\r<br>By Ben\r<br>Terraspin\r<br>Cannonbolt (accidental transformation, intended alien was Astrodactyl)\r<br>Gravattack\r<br>Perk Upchuck\r<br>Pesky Dust\r<br>Water Hazard\r<br>Bloxx\r<br>Atomix (debut)\r<br>By Albedo\r<br>Articguana\r<br>Ultimate Articguana (debut)\r<br>Armodrillo\r<br>Gravattack\r<br>Ultimate Gravattack (debut)\r<br>Ultimate Humungousaur\r<br>Ultimate Spidermonkey\r<br>Albedos True Form\r<br>By Khybers Panuncian Pet\r<br>Crabdozer