Set foils are characterized by a very shiny set symbol while the symbol on collector foils is dull
Other protection: Asceticism, Privileged Position, Gift of Immortality, Champion's Helm, Swiftfoot Boots, Lightning Greaves, Archetype of Endurance Double Double There's three token doublers that I know of: Parallel Lives, Doubling Season, and Primal Vigor
Drannith Magistrate This card will probably not see play: Lorkac: The card is bad
Ardoz's text also says whenever it or another creature enters the battlefield under your control, that creature gets +2/+0 until the end of your turn
The creator of the Phyrexians, Yawgmoth, originally was a healer who got too wrapped up in studying victims of disease rather than saving them