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