
The World Tree | Land | | The World Tree enters the battlefield tapped.
{T}: Add {G}.
As long as you control six or more lands, lands you control have "{T}: Add one mana of any color."
{W}{W}{U}{U}{B}{B}{R}{R}{G}{G}, {T}, Sacrifice The World Tree: Search your library for any number of God cards, put them onto the battlefield, then shuffle. | Anastasia Ovchinnikova
3.5 LSV

Great Hall of Starnheim | Land | | Great Hall of Starnheim enters the battlefield tapped.
{T}: Add {B}.
{W}{W}{B}, {T}, Sacrifice Great Hall of Starnheim and a creature you control: Create a 4/4 white Angel Warrior creature token with flying and vigilance. Activate only as a sorcery. | Jonas De Ro
3.5 LSV

Snowfield Sinkhole | Snow Land | Plains Swamp | ({T}: Add {W} or {B}.)
Snowfield Sinkhole enters the battlefield tapped. | Marta Nael
3.0 LSV