User blog comment:Silicon Soldier/Xûr's Inventory: August 14, 2015 - August 16, 2015: Gjallarhorn Edition/@comment-26625664-20150814233433/@comment-25916964-20150815073900

They way I see it, you have 3 options.
 * 1) Weekly Heroic Strike at level 32 with 2 characters. (18 coins total)
 * 2) Weekly Heroic Strike at level 30 with 3 characters. (18 coins total)
 * 3) Mass farming of rare engrams.

As for the frustration, I can relate (although I didn't even know what the significance was at the time). I first played Destiny (with a healthy dose of scepticism) during the second weekend, when Gjallarhorn first went up. Didn't know what the fuss was about at the time, didn't even have a single coin! But I found out in the MONTHS that followed. :(

On the upside, I've got it now. :)