Elvenking's Halls (#182)

Type: Land

Text: This land enters tapped.
{T}: Add {G} or {U}.
{2}{G}{U}, {T}, Sacrifice this land: Put two +1/+1 counters on target Elf you control. Activate only as a sorcery.

Elf-guards sang as they marched along the twisting, crossing, and echoing paths.

Set: The Hobbit (#182)