Athreos, God of Passage Often used in decks that focus on sacrificing creatures for various benefits, such as triggering death effects or gaining life, Athreos is a legendary enchantment creature with a casting cost of 1 colorless, 1 white, and 1 black mana
At a current market price of $0.85, it is a mandatory inclusion for budget-conscious green players who need a reliable safety net against unexpected threats
for example in the form: Card one card two card three and so forth
Re-casting the Ring from your hand lets you keep the protection from everything active, shielding you from targeted combo kills for another full round
My problems with it are that it has a high mana value, so that upkeep trigger wont always be all that impactful, and the activated ability also hits your own creatures
Hands down the best sac outlet in the game, Viscera SeerViscera Seer would be excellent if it was just a one-mana creature that said "sacrifice a creature" on it, as evidenced by Carrion FeederCarrion Feeder