From the official release announcement:
"An uneasy silence falls over the arena as Dunkmaster Darius steps onto the court. Since his debut, two teams have disbanded, seven referees have “mysteriously” disappeared, and three hundred fans have been treated for shock.
Darius strides to the top of the key. He vaults into the air, whipping the ball around his body and slamming it through the hoop. The backboard shatters, glass raining onto his shoulders as the crowd erupts.
Dunkmaster Darius doesn’t play the game, he is the game.
Commence the dunkstruction with Dunkmaster Darius, available now in the League of Legends store for 1820 RP."
Dunkmaster Darius features a unique voiceover, which clocks in at about eight minutes worth of trash talk!
Dunkmaster Darius features unique voice over lines for over 30 champions, including: Amumu, Ashe, Brand, Caitlyn, Diana, Draven, Mundo, Ezreal, Fiddlesticks, Gangplank, Garen, Gragas, Janna, LeeSin, Leona, Lulu, Malphite, Maokai, MasterYi, Nocturne, Orianna, Rammus, Sion, Sona, Soraka, Trundle, Udyr, Vi, Vladimir, Zilean, and Zyra!
He also has several unique item lines when purchasing the following in-game items: Boots of Speed, Frozen Mallet, Infinity Edge, Maw of Malmortius, Sunfire Cape, Randiun's Omen, Ravenous Hydra, Stealth Ward, The Bloodthirster, and Trinity Force.