Here is the full list of all 29 Spellstone achievements.
Obtain Bounty Rank 10.
Complete the 'Trial by Fire' campaign.
Collect a total of 50 Mastery Stars
Complete the 'Tales from the Swamp' campaign.
Upgrade cards 100 times.
Complete the 'Big Mama' campaign.
Collect a total of 500 Arcane Dust from Vaporized cards.
Complete the 'Swamp Lands' campaign.
Complete 'The Void Core' campaign.
Create a Quad Fusion.
Create a Duo Fusion.
Complete the 'Eater of Rock' campaign.
Obtain Bounty Rank 5.
Complete the 'Void's Ambush' campaign.
Complete the 'Karthos, Lair of Chaos' campaign.
Complete the 'Castle on the Rocks' campaign.
Upgrade cards 30 times.
Collect a total of 50 Arcane Dust from Vaporized cards.
Complete 'The City of Luminis' campaign.
Complete the 'Chaos Contagion' campaign.
Obtain Bounty Rank 2.
Complete the 'Source of Chaos' campaign.
Upgrade cards 5 times.
Successfully craft a Rare Rune.
Successfully craft 10 Rare Runes.
Successfully craft an Epic Rune.
Successfully craft 10 Epic Runes.
Collect a total of 100 Mastery Stars
Collect a total of 200 Mastery Stars