Users of Twitch Prime are eligible from December 3rd to February 10th to receive a copy of the "Liliana's Legion" deck on Magic: The Gathering: Arena. This deck is blue and black and is a decent preconstructed deck.
The 60-card decklist is as such:
Planeswalker (1)1 Liliana, Dreadhorde General
Creature (22)3 Aven Eternal3 Eternal Skylord2 Faerie Duelist2 Foulmire Knight2 Gleaming Overseer1 Gravewaker4 Lazotep Reaver2 Nightveil Predator2 Spectral Sailor1 Sphinx of Foresight
Sorcery (7)2 Callous Dismissal1 Enter the God-Eternals2 Unexplained Vision2 Winged Words
Instant (4)1 Commence the Endgame3 Murder
Enchantment (1)1 Dreadhorde Invasion
Land (25)4 Dimir Guildgate10 Island11 Swamp