With so many cards and planeswalkers caring about specific creatures, deck building would be a lot more effective and efficient with more options.
Example: lets us search for the creature subtype of zombie so we can see all options to work with Liliana’s abilities. Let’s us look for human subtype to build around Sigarda or Westvale Abbey.
Also filtering by creature abilities like haste, lifelink, reach, etc would be super helpful when building for specific event objectives.
As a temporary solution, may I suggest octal9’s http://mtgpq.info? 
It’s helpful for now, but it would be nice to browse cards I know I have rather than the full database in the future. Thanks 
You’re in luck; 1.1.0 will have user inventory filter available: https://trello.com/b/puL0EV0p/mtgpq-info
1.1.0 is due for deployment on Jan 20th
edit: with that said, I would also like to see more filter options available in-game. I don’t know how they’d fit it though - the search UI would likely need a revamp
It should be possible to make all hard attributes (including future ones) searchable if your programmers are any good.
Frankly, it’s embarrassing this feature doesn’t already exist. I remember the first time I searched “Werewolf” to put together a deck for an event. It took me three tries before I realized it wasn’t that I had a typo, but rather the search function is virtually useless.
Same here… The search option is completely useless. It should search not only cards subtype (Werewolf, Construct, Ally etc.) but also it’s full description. F.e. it should be possible to search all cards with “Destroy” in description.
Now making deck is very difficult without outside tools like http://mtgpq.info.
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R.U.R. (MtG:PQ > RUR70PL)