That's quite a nymph collection you have there, welcome back to the community!
Silver is indeed the best place to farm shards, and what you have there is a good deck for it. if you want a bit of variation, you could remove your Maxwell's deamon and a heal, and add your two Shards of Serendipity, but that's up to you.
With False God farming, have a look at
this thread and
this thread. The best without shards is
Limitless Speed, the best with shards are
PDials,
Voodoo Bravery and
The Brave Malignant Ball Who Could depending on your playstyle.
Are you interested in PvP at all? There are still loads of PvP opportunities, as well as non-pvp competitions which you can join, or not as you see fit. Unfortunately you have just missed signups for our biggest event, War, which is about to start, but there are Leagues (Battle League - unupgraded and Champion's League - upgraded) which are great fun
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Welcome, hope you stick around
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