Enchant artifact.As long as enchanted artifact isn't a creature, it's an artifact creature with power and toughness each equal to its converted mana cost.
Enchant creature card in a graveyard.When Animate Dead enters the battlefield, if it's on the battlefield, it loses "enchant creature card in a graveyard" and gains "enchant creature put onto the battlefield with Animate Dead." Return enchanted ...
Enchant creature.Enchanted creature gets +X/+Y, where X is half the number of Forests you control, rounded down, and Y is half the number of Forests you control, rounded up.