Here is the full list of all 29 Spellstone achievements.
Successfully craft 10 Epic Runes.
Successfully craft 10 Rare Runes.
Collect a total of 200 Mastery Stars
Successfully craft a Rare Rune.
Collect a total of 100 Mastery Stars
Successfully craft an Epic Rune.
Obtain Bounty Rank 10.
Collect a total of 50 Mastery Stars
Upgrade cards 100 times.
Create a Quad Fusion.
Complete the 'Trial by Fire' campaign.
Complete the 'Tales from the Swamp' campaign.
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.
Complete the 'Eater of Rock' campaign.
Obtain Bounty Rank 5.
Create a Duo Fusion.
Complete the 'Void's Ambush' campaign.
Collect a total of 50 Arcane Dust from Vaporized cards.
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.
Upgrade cards 5 times.
Complete the 'Source of Chaos' campaign.
Complete the 'Chaos Contagion' campaign.