Forbidden Book: Green

Only 1 copy of Forbidden Book: Green per Library. This artifact has: Cannot be countered by spells or abilities, Hexproof, Indestructible, if put into a graveyard returns to your library.
At the beginning of your upkeep put a land token into play {t}, it has when {t} produces {g} mana.
{2}: Put a 1/1 Elf creature token into play.
{5}: Put a 4/4 Wurm creature token with trample into play.