Building on Naniris' comment, a good way to beat the game: 1. Lucid Dreamer mode with Neraine and Ladon. 2. Go through the game, using only Azure Stones to evolve your creature. 3. Also, level up agility to the max. 4. Buy 2 "Deep Blue" 5. Put your spare EV points into whatever you think's best. 6. You should also try to get some items, but only when you've finished the previous tips. Result: Constantly frozen enemies.
One you get Mike T and the Champion's gloves, upgrade your mana regen, haste, and rage. If you want, get the healing upgrade too. After that, you can pretty much breeze through the game if you just use him and spam those spells.