I actually have Dr. Boom, Loatheb, Mal'Ganis, Vol'jin, Sneed's Old Shredder, Neptulon, Mogor the Ogre (golden), Maexxna y Hemet Nesingwary. And I also have 1800 dust.
I actually play with Rogue, Priest, and zoolock poor version.
Knowing that I can disenchant and craft about 3 top tier legendary cards, which ones you beautiful community advise me so I can have a new good/decent deck to play with.
I was thinking about crafting Antonidas to play mech mage, but I don't know if it's worth it because I also want to improve my winrate, i.e., if I actually have a 60%wr and crafting Antonidas and playing mech mage I keep my 60%wr then spend 1600 dust is not worth, I hope I've explained myself well.
I want advice :P I'm sorry for make your eyes bleed with my bad English.
Do not build a mech mage deck right now, since it seems to be losing speed. The only legendary i would disenchant from your list is Mogor the Ogre because he is golden (i don't care for golden cards). I generally do not disenchant cards i don't have multiples of, in case they somehow become useful.