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