Biggest Omissions: Crucible of Worlds $69.99 Chalice of the Void $69.99 Horizon Canopy $69.99 Karn Liberated $59.99 Mox Opal $59.99 Engineered Explosives $59.99 Emrakul, the Aeons Torn $54.99 Ensnaring Bridge $49.99 Grove of the Burnwillows $49.99 Arcbound Ravager $44.99 Aether Vial $39.99 Mishras Bauble $34.99 Blightsteel Colossus $34.99 Flagstones of Trokair $19.99 Inkmoth Nexus $25.99 Celestial Colonnade $23.99 Spellskite $22.99 Blackcleave Cliffs $22.99 Oblivion Stone $22.99 Creeping Tar Pit $19.99 Batterskull $18.99 Glimmervoid $26.99 Eldrazi Temple $9.99 Steel Overseer $9.99 Valakut, the Molten Pinnacle $7.99 Expedition Map $2.49 Modern Masters 2017 was light on the artifacts, so this list is pretty long
Mysterious Fossil has no attacks, can't retreat, and can't be Asleep, Confused, Paralyzed, or Poisoned
If you're a beginner, you may tend to prefer Pokmon cards to Trainer cards
Apprentice Wizard works on spells or artifacts and even creatures, which is rare for blue ramp
Mega Zeraora ex #114 SIR Loading
Other things that affect the price of a card are reprints in new sets or being banned
