https://www.pcgamer.com/deckard-cain-puts-enemies-to-sleep-in-heroes-of-the-storm-by-reading-them-diablo-lore/

Heroes of the Storm brings together the mightiest characters from across Blizzard's games, but the latest champion to enter the Nexus might be the best. Deckard Cain, Diablo's longwinded loremaster, is entering the fray.

Why is Deckard Cain so great? Well, in addition to identifying all your items and having his own rap song, Cain's HotS incarnation has some pretty hilarious heroic abilities.