Rivals of Ixalan

Canal Monitor | Creature | Lizard | | Zezhou Chen

Champion of Dusk | Creature | Vampire Knight | When Champion of Dusk enters the battlefield, you draw X cards and you lose X life, where X is the number of Vampires you control. | Josh Hass

Mausoleum Harpy | Creature | Harpy | Flying Ascend (If you control ten or more permanents, you get the city's blessing for the rest of the game.) Whenever another creature you control dies, if you have the city's blessing, put a +1/+1 counter on Mausoleum Harpy. | Randy Vargas

Angrath, the Flame-Chained | Legendary Planeswalker | Angrath | +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 mana value 3 or less. −8: Each opponent loses life equal to the number of cards in their graveyard. | Raymond Swanland