Calciderm is a uncommon Creature — Beast card from Planar Chaos (PLC), collector number 23. Current market price: $0.21 (foil $0.69), TCGplayer market prices via Scryfall.
Shroud (This creature can't be the target of spells or abilities.) Vanishing 4 (This creature enters with four time counters on it. At the beginning of your upkeep, remove a time counter from it. When the last is removed, sacrifice it.)