Here is the full list of all 13 RUNES Magica achievements.
Complete Tutorial
Clear Stage 1
Clear Stage 2
Clear Stage 3
Use magic with seven Ignis runes
Use magic with seven Aer runes
Use magic with seven Fulmen runes
Use magic with seven Aqua runes
Use magic with seven Terra runes
Use magic with seven different runes
Eliminate 100 knights
Eliminate 500 knights
Eliminate 1000 knights