QUOTE(tabs @ Apr 27 2015, 08:48 PM)
just wondering after upgrade the fairy to lv 4 what can i do a? just keep lv up? lol. my most monster is lv 3 only. fairly is just lv 4

I just started the game one month ago
My initial team was:
- Light Fairy Queen
- Water Fairy
- Fire Hellhound
- Water Bounty Hunter
- Water Inferno
You might want to try to invest in more crystals to summon Mystical Scrolls. Try getting lightning from your scrolls to get better 4 stars monsters.
Regarding runes, if you realise, there are 6 slots. 1st slot, 3rd slot, 5th slot is for flat stat (Something like ATTACK + 50, DEFEND + 50, HP + 50). 2nd slot, 3rd slot, 5th slot is for percentage (Example like ATTACK + 10%, DEFEND + 10%, HP + 10%).
And then, you need to combine sets of runes to get extra stats.
To answer your question, you can level up your Fairy and other monsters to higher level. Lets say you have a Water Fairy 3 star, you can level her up to Level 25, by playing quests scenario or by feeding 1 or 2 stars monsters that you obtain from Unknown Scrolls. Once she hits Level 25, you need to sacrifice another three 3 stars monsters to evolve her, which means your Fairy will be a 4 star monster. Basic stats will improve a lot.