Vona's Hunger [Rivals of Ixalan Promos]

Vona's Hunger [Rivals of Ixalan Promos]Set: Rivals of Ixalan Promos Type: Instant Rare Cost: {2}{B} Ascend (If you control ten or more permanents, you get the city's blessing for the rest of the game.) Each opponent sacrifices a creature. If you have the city's blessing, instead each opponent sacrifices half the creatures they control, rounded up.

and twisted by rage

Set: Archenemy Type: Sorcery Uncommon Cost: {B} Put target creature card from a graveyard onto the battlefield under your control

Set: Limited Edition Beta Type: Sorcery Rare Cost: {1}{U} Take an extra turn after this one

except it doesn't copy that creature's color and it has this ability

"Why would I kill you all

Exile Gonti's Aether Heart: Take an extra turn after this one

Set: Mercadian Masques Type: Legendary Creature — Goblin Rare Cost: {2}{R} At the beginning of your upkeep

searches their library for a card

To our horror

Set: Khans of Tarkir Promos Type: Enchantment Rare Cost: {W}{B}{G} When Abzan Ascendancy enters the battlefield

The barrier between existence and oblivion is thinner than you know

Set: Unlimited Edition Type: Enchantment — Aura Rarity: Uncommon Cost: {1}{B} Enchant creature card in a graveyard