Endless Atlas is a great card in any mono-colored deck, and Reliquary tower is always good in decks that like drawing cards
These duds are on the list because WotCs initial policy was to reserve a percentage of the rares from each new set, rather than hand-picking cards based on power or importance
Its a fine rate for the effect, but the addition of flashback makes this almost the reanimation equivalent to cards like Timeless Witness you can reanimate two things, or gain value from discarding or milling it
Some of these are exact clones (Balduvian Bears, Bear Cub, Forest Bear, Runeclaw Bear), while others are close enough, like how you pay 1 more generic mana for 2 more power with Alpine Grizzly or 2 more mana for a Golden Bear
#1 Kozielk, the Great Distortion Secret Lair Drop Series Market Price: $17.54 Perhaps not much of an accomplishment given you dont see many colorless Commanders at present, but Kozilek, the Great Distortion is the top colorless Commander according to EDHREC, and if built correctly, the Eldrazi titan can be gnarly to play against