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 and "Enchanted Forest has ‘
![Tap](/Handlers/Image.ashx?size=small&name=tap&type=symbol)
: Add
![Green](/Handlers/Image.ashx?size=small&name=G&type=symbol)
![Green](/Handlers/Image.ashx?size=small&name=G&type=symbol)
' and ‘
![1](/Handlers/Image.ashx?size=small&name=1&type=symbol)
,
![Tap](/Handlers/Image.ashx?size=small&name=tap&type=symbol)
, Sacrifice this land: Create a tapped 4/4 green Troll Warrior creature token with trample.'"