Arch of Orazca

Ascend on an instant or sorcery spell represents a spell ability. It means “If you control ten or more permanents and you don’t have the city’s blessing, you get the city’s blessing for the rest of the game.”

Ascend on a permanent represents a static ability. It means “Any time you control ten or more permanents and you don’t have the city’s blessing, you get the city’s blessing for the rest of the game.”

The city’s blessing is a designation that has no rules meaning other than to act as a marker that other rules and effects can identify. Any number of players may have the city’s blessing at the same time.

After a player gets the city’s blessing, continuous effects are reapplied before the game checks to see if the game state or preceding events have matched any trigger conditions.