No one's made a Valyrian STEEL sword
since the Doom of Valyria.
Game of Thrones Season 4, Episode 1
...the arakh won't get through the STEEL.
Game of Thrones Season 1, Episode 3
Bless him with STEEL.
Game of Thrones Season 2, Episode 3
When I hit that STEEL, it sings.
Game of Thrones Season 1, Episode 10
This is castle-forged STEEL.
Game of Thrones Season 1, Episode 10