Ultima Weapon The first Universes Beyond entry on this list, Ultima Weapon is an iconic part of the Final Fantasy franchise, and its flavor text here says This will be the end of it." Strong words indeed, but by giving it to a creature, they get +7/+7, and whenever equipped creature attacks, destroy target creature an opponent controls." Thatll be the end of it, alright
Ashnods Altar is a three mana Artifact that allows you to sacrifice a creature to gain two colorless mana
Loot is the best example of this so far, featuring literal Ancestral Recall as an Exhaust ability
"How to play Magic: The Gathering your beginner's guide to mana, cards, and combat"
Every guild other than the Golgari Swarm is represented
You can change your Ring-bearers to draw cards each turn, and get an advantageous attack