Not sure what kind of advice you're looking for but here goes:
- Regular codestones are fairly cheap right now, so it's worth using the training school to even out your stats (atk, def, hp)
- Bottled faeries are cheap too, feel free to pick an ability for each tier. try to get lens flare at lv 50
- Your pet won't be healed after a fight, so I use lens flare and warlocks rage (both faerie abilites do the same) for 2 turns of raw damage with no retaliation. I actually don't bother with challengers I can't 2-hit
- I have one healing item (Rejuvenating Jar of Brains) in case my pet suffers damage
- You can look here for strength/defense boosts and you'll know at which numbers you'll gain a significant increase in damage: http://battlepedia.t...defense-boosts/
- If you play 1P only, damage elements don't matter as much, so just go for many icons.. but you already have some big weapons, so you'll be fine xp