Here is the full list of all 45 Necronator: Dead Wrong achievements. It takes around 15-20 hours to unlock all of the achievements on Windows.
Use Triple Cast on a Perk Utility Card
Reach Level 10 as Luavira Heartwing
Reach Level 10 as Mirabella the Doll
Haunt 100 Villages
Reach Level 10 as Number 7
Allow a Battle to last 8 minutes
Finish 3rd sector for the 1st time in campaign mode
Win a Battle after Enemy Reinforcements have arrived
Defeat Flosshilde the Huntress and her mount
Finish 2nd sector for the 1st time in campaign mode
Defeat Sultana Al'Noobi in Genie Form
Play 10 Cards in 10 seconds
Finish 1st sector for the 1st time in campaign mode
Defeat Lord Balderdash and his Yeti
Have 45 Units on the battlefield at the same time
Load a User Created Mod
Have 30 Units on the battlefield at the same time
Reach Level 2 as Luavira Heartwing
Lose a Battle as Luavira Heartwing
Win an Elite Battle as Luavira Heartwing
Play 5 Cards in 10 seconds
Win a Battle in under 90 seconds
Win a Battle as Luavira Heartwing
Reach Level 2 as Mirabella the Doll
Lose a Battle as Mirabella the Doll
Upgrade a Spell Card
Win an Elite Battle as Mirabella the Doll
Win a Battle without Haunting any Village
Use Redraw when you have 8 cards in your hand
Have 10 Cards in hand
Have 7 Cards in hand
Upgrade a Utility Card
Win a Battle as Mirabella the Doll
Use Redraw when you have 6 cards in your hand
Reach Level 2 as Number 7
Lose a Battle as Number 7
Win an Elite Battle as Number 7
Upgrade a Squad Card
Win a Battle in under 180 seconds
Win a Battle without your Mana ever reaching 100%
Win a Battle as Number 7
Redraw your hand
Haunt a Village
Change the direction of a Signpost in Battle
Start your first Game