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