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