Trample (This creature can deal excess combat damage to the player or planeswalker it's attacking.) When Old-Growth Troll dies, if it was a creature, return it to the battlefield. It's an Aura enchantment with enchant Forest you control (Target a(n) Forest you control as you cast this. This card enters the battlefield attached to that Forest you control.) and "Enchanted Forest has ': Add ' and ', , Sacrifice this land: Create a tapped 4/4 green Troll Warrior creature token with trample (This creature can deal excess combat damage to the player or planeswalker it's attacking.).'"