The Lost Caverns of Ixalan Commander

Arch of Orazca

Ascend (If you control ten or more permanents, you get the city's blessing for the rest of the game.)
{T}: Add {C}.
{5}, {T}: Draw a card. Activate only if you have the city's blessing.

The List

Commander Masters

Time Spiral Remastered

Ascend (If you control ten or more permanents, you get the city's blessing for the rest of the game.)
{T}: Add {C}.
{5}, {T}: Draw a card. Activate this ability only if you have the city's blessing.

Rivals of Ixalan

Ascend (If you control ten or more permanents, you get the city's blessing for the rest of the game.)
{T}: Add {C} to your mana pool.
{5}, {T}: Draw a card. Activate this ability only if you have the city's blessing.