Angrath, the Flame-Chained

Oracle Text
+1: Each opponent discards a card and loses 2 life.
−3: Gain control of target creature until end of turn. Untap it. It gains haste until end of turn. Sacrifice it at the beginning of the next end step if it has converted mana cost 3 or less.
−8: Each opponent loses life equal to the number of cards in their graveyard.
Card Rulings
1/19/2018 Angrath’s first ability causes each opponent to lose 2 life even if some or all of those players were unable to discard a card.
1/19/2018 You can target and gain control of an untapped creature with Angrath’s second ability. You can also untap a creature you already control and give it haste.
1/19/2018 Whether the target creature has converted mana cost 3 or less is checked only as the delayed triggered ability from Angrath’s second ability resolves during the end step.
1/19/2018 In a Two-Headed Giant game, Angrath’s first ability causes the opposing team to lose 4 life, and each player on that team discards a card. His last ability causes the opposing team to lose life equal to the number of cards in both graveyards.
Not a Lilianna of the chain veil.
Sure, this guy technically generates more value and costs 1 less, but constantly wiping the field of tokens and mana dorks, tribal Pirate support, and a game-ending wipe seems really strong. This version can't really protect himself, while the Minotaur Pirate version can potentially clear out weenies and bring Pirates back from the grave to block. This guy can't take a creature to block with, and only gets rid of weak creatures.
He even adds only +1 instead of +2, making him easier to remove. He might come down a turn earlier, but he also gets his game-ending final ability a turn later, so both Angraths put the enemy on the same clock. Even at 1 more CMC, I'd rather play the Planeswalker deck version.
He's no Ob, but for less creature oriented strategies, he's a solid wincon, and against control builds, fairly annoying.
I also enjoy the idea of opponent wanting to play out their The Scarab God with this guy on the battlefield. They will likely be inclined to wait due to the threat of stealing and reanimating with it, and if they don't...
IMO worth testing. Maybe you just keep him in the sideboard until you know you're not playing against aggro.