Card text can't be more elegant than "Protection from everything." If at any point you wonder how your creatures, spells, and abilities will interact with Progenitus, the easy answer is thisthey don't
Your job is to figure out how to return the favor to the Eriette player in time, using their buffs to take out other players, then following up with some timely enchantment removal to turn your attention back to Eriette
Valgavoth, Terror Eater Valgavoth, Terror Eater is certainly powerful, but its difficult to judge how much
For two new players, one of each is perfect to learn the game
Its the queen of proactive play and beatdown, and its incredibly annoying to have to pay 1 more for each noncreature spell