Multiverse Feedback: Virtual Booster

Levelers    M  Legendary Feature	Can't edit cards in Safiria    U  Ongoing Bug When using Chromium on Ubuntu 12.04, I cannot edit cards that I have created — instead I get the "We're sorry, but something went wrong" page.	Different card frames    U  Enhancement Stuff like the old frame, PCH planeshifted, and FUT futureshifted.	Frequent Heroku errors?    U    I've been seeing a few Heroku errors on the page lately. It usually doesn't last, just half an hour or so, but it's a little odd. Wanted to ask about it in case it's slipped under the radar so far.	General Discussion Set    C  Suggestion I think a set titled "General Discussion" started by you, and open to everyone would be a good idea. Individual topics can be started by creating a new card.
Get emailed when things happen    C  Feature Let people subscribe to a card, or a cardset, and get emailed when comments are posted and/or edits are made.	Copy mechanics between cardsets    C  Feature It'd be nice if multiple cardsets could share a mechanic. Particularly obvious for several sets in the same block.	Tooltips don't appear if hovered too quickly    C  Bug If you mouseover a Gatherer tooltip (a [[[link to a printed card]]]) before the page has loaded, then the tooltip won't show, and won't even show if you re-mouseover the same link after the page loads.	Can't Access my Set    C    Well, that's not specifically true. For my Unplaced Cards set, I am unable to access to front page. This means I can't see any new comments on the set. I am, however, able to access the other pages, such as individual cards in the set and the visual spoiler. My other sets seem to be functioning fine.	Double-backspace editing on iPod Touch    C  Glitch I like making cards. So I work on them whenever I have free Wi-Fi and a free moment. Unfortunately, when I try to backspace while in the card-edit page, it usually (but not always) deletes the last 2 characters. This only occurs editing cards; comments, etc. work fine.
Warn if about to lose unposted comment    C  Enhancement If you've typed a bunch of text in a comment box, but then click "Edit card" or some other link, the comment isn't posted. I could make Multiverse warn you about the unposted comment, like Stack Exchange sites do.	View cards before publish    C    It would be nice if there was a button that allowed us to see what the finished card would look like before we create them.	My Cards    C  Enhancement It'd be nice to have a global link to My Cards (i.e. ones the current user has created), or My Recent Cards, or something.	Multiple cardset admins    C  Feature There's currently no way to allow a few people to edit a cardset unless you allow all signed-in users to do so. There should be.	Can't view large sets    B    If cardsets are too large, say for around 700 cards, I can't view them, instead Application Error shows up. This happens whether I use either visual spoiler or cardlist. Can you help me find a way to allow me to view a large cardset without experiencing problems or the Application Error?

Levelers (mythic)
Can't edit cards in Safiria (uncommon)
Different card frames (uncommon)
Frequent Heroku errors? (uncommon)
General Discussion Set (common)
Get emailed when things happen (common)
Copy mechanics between cardsets (common)
Tooltips don't appear if hovered too quickly (common)
Can't Access my Set (common)
Double-backspace editing on iPod Touch (common)
Warn if about to lose unposted comment (common)
View cards before publish (common)
My Cards (common)
Multiple cardset admins (common)
Can't view large sets (basic)