The Etched Cliff of Aertund

{t}: Add {c}. Add {u} or {r} instead is you casted an instant or sorcery spell last turn.

{1}{u}{r}, {t}: Until end of turn, instant and sorcery
spells you cast with mana value 5 or greater cost {1} less to cast.
Those cliffs have been carved by the dwarves' people
of Aertund to scan the vast oceanic horizon of naval comings and goings. This also helps to ventilate the
huge city under the mountain.