Magic Duels

*** Note some users are reporting this as bugged and there is no indicator as to how many quests you've done. Please don't give me a negative because your counter is not going up. You must do the quests in SOLO battles only or they don't count. ***

This involves accomplishing items noted as Quests on the main menu. You get one per day and can have up to 3 active at one time.

Also, you can refresh one quest per day if you don't like what the game has given you. Sometimes you can get lucky and have the same Archetype show up for two different quests.

Sample quests I've seen:
Draw 20 Cards (super easy)
Sacrifice 20 Permanents (to do with Blue-Black archetype deck)
Win 2 battles with Archetypes (various color combos)
Win 4 battles with Archetypes (various color combos)
Home Brew - win 2 battles with a created deck (must use Deck Builder)
Target opponent 15 times with spells
Place 20 +1/+1 Counters on creatures you control.
etc...

Full list of quests, external link:
http://magicduels.wikia.com/wiki/Quests

Note that to win an Archetype quest, you must build a deck with the color combinations noted. This must be built with the Deck Wizard. You get more Gold if you accomplish more difficult quests, e.g. 4 Archetype battle victories instead of two.

Community Quests do not count for this, only solo.