my question is if this will work with urborg that legendary land that makes all lands swamps in addition to their other types... it doesn't specify basic swamps, but it would make basics of any other color basic swamps still
Prismatic Omen doesn't make the lands Basic, just all the basic land types, similar how changeling makes cards like Nameless Inversion every creature type without turning them into a creature.
Kinda But not really. If the land was a basic land that Urborg made a swamp, like lets say an basic "Waste" or basic "Island" then yes it would work, but if it wasn't a basic land to start like lets say a "Savannah" or "Urborg" itself then no it will not. as the_retired_champion said "Urborg" doesn't give a land the supertype "Basic" and without that "Cabal Stronghold" will not count it swamp or not.
You'd be tempted to call this a strict downgrade from Cabal Coffers, but having that T: add 1 makes enough of a difference in starting hands for me to just call this a sidegrade-downgrade.
DAYUM DAYUM!!!!!!!
OP as fuuuuuuuuuu
power level over
my question is if this will work with urborg that legendary land that makes all lands swamps in addition to their other types... it doesn't specify basic swamps, but it would make basics of any other color basic swamps still
Looks a bit like Terrain Generator in the art.