Survival Elves floods the board with mana dorks like Fyndhorn Elves, Llanowar Elves, Priest of Titania, and Wall of Roots to power out Natural Order into Deranged Hermit or another huge threat. Infest's -2/-2 wipes essentially their entire 1-toughness mana base of dorks and tokens in one sweep, setting them back several turns. Engineered Plague naming Elf further cripples Fyndhorn Elves, Llanowar Elves, Priest of Titania, and Quirion Ranger even outside of a sweeper turn. Cut Phyrexian Furnace and Funeral Charm, which do little against a creature-mana-based combo-midrange deck, and lean on Wrath of God as a full reset against their board states.