You can get them by-
Breaking down year 2 legendary weapons and armour; the purple ones (3).
Doing the Daily heroic (15).
Doing the daily crucible (15).
Doing the weekly heroic (15x3; 45 total I think).
Iron Banner weekly quests (25 each, 75 total I think).
Certain quests (varies).
There are probably a few more ways as well.
Daily rewards are account based so it doesn't really matter you've only one character.
You can only [i]hold[/i] 200 at any time, but you can [i]earn[/i] as many as you like, so you could potentially get 210 a week doing just daily's.
Hope this helps!
English
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You get three marks per piece of year 2 legendary gear you dismantle. If you upgrade them to the third upgrade node, you get 5 marks instead. Three heroic strikes at 10 marks each, then do daily crucible and daily heroic story.
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You actually get 10 for the first 3 heroic strikes you do
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My bad. I don't really need marks these days so don't pay much attention to rewards.
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My bad. I don't really need marks these days so don't pay much attention to rewards.