Hello, I am an active tournament player and indeed thanks to tournaments, I win and store several blueprints together with a lot of spells. However, I don't disenchant them, I rather use them as they are a precious help to me and my city.
I have the same dilemma as anybody else as to which building to disenchant (which I don't have in quantity since they all come from past events and I tend to replace any obsolete building or with lower stats than those that I win ASAP) but what I do get in large quantities for disenchanting (and not from tournaments but from
Events!) are
Coin Rains and S
upply Windfalls. Those I disenchant actively, since I don't need them, my city being balanced enough to always staying topped, or if I really need coins, I just visit my neighbors with the app and get my coin bar full again. Needless to say that the crafting feature is worth it especially if you have your MA fully upgraded, which I did upgrade recently thanks to the
Wishing Wells I won again from
Events. And Winter Event is right around the corner for more of those!
Thanks to
Coin Rains I am crafting non stop, yes especially military buildings, a few small culture buildings to fill empty spots but also KP instants which help with upgrading my wonders and getting my city even more efficient.
All in all, I am enjoying it, I am one of those crafting enthusiasts, yes it could get improved and perfected but I guess I see it as a funny way to give me more stuff while getting rid of other I don't really need. Plus I am excited about the
Mystical Object at the end.
Wanted to also point out that personally tournaments have no helped me more for this feature and as I said before I am basing my crafting essentially on the wins of past
Events.