Grindstone [Tempest] Vampire Shaman Tawnos finally cracked the puzzle:

Tawnos finally cracked the puzzle: the strange structures did not house Mishra's malevolent creations but were themselves among his creations

Set: Judge Gift Cards 2016 Type: Land Rarity: Rare {T}: Add {C}

Whenever Sapling of Colfenor attacks

Set: Urza's Saga Type: Enchantment Rarity: Rare Cost: {3}{R} {R}: You may put a creature card from your hand onto the battlefield

His prodigies subdued the western sphere

Grindstone [Tempest] Vampire Shaman Tawnos finally cracked the puzzle:Set: Tempest Type: Artifact Rarity: Rare Cost: {1} {3}, {T}: Target player mills two cards. If two cards that share a color were milled this way, repeat this process. "Memory is a burden that wears at the soul as weather wears at stone." Crovax