As for what could be in the missing spots, 439 is missing, which is a white card between Dion and Minwu, 457 is likely a red card before Clive alphabetically, a multicolour card at 485 between The Emperor of Palamecia and Garland, 504 between Rufus and Sephiroth, and 515 between Vivi and Xande
It's great in multiples and great overall
Be patient as the two stages it takes the most time in is research and ID, then the actual grading step
Card Name Mana Cost Type Creature Fungus Rarity Rare rules Text Devour 2 (As this creature enters, you may sacrifice any number of creatures
Later, whenever other creatures enter from the graveyard, it puts counters on your whole board
Legendary Planeswalker - Grist Planeswalker (CTRL to add secondary) Ramp Ramp (CTRL to add secondary) Recursion Biotransference Creatures you control are artifacts in addition to their other types