Mechanics
Exodus introduces no new keywords or mechanics, but it did use the Buyback and Shadow mechanics introduced in Tempest.
There were two cycles in Exodus called by the name of "underdog" cards: cards that aid the player most when he is behind his opponent in a certain aspect of the game. The first cycle are the Oaths, one rare enchantment of each color, that would check a resource (life, creatures, cards in hand) of each player and then balance them out. There were also the keepers, that were weaker creature versions of the oaths, and uncommon.
Read more about this topic: Exodus (Magic: The Gathering)
Famous quotes containing the word mechanics:
“It is only the impossible that is possible for God. He has given over the possible to the mechanics of matter and the autonomy of his creatures.”
—Simone Weil (1909–1943)