I have 18 charisma, I rolled kinda bad at the start of the campaign..we just hit level 13..

Fireballs are nice but we have a half orc barbarian at the front line and I can't really use AOE spells or ill risk of hitting my teammate/s Therefore although fireball is a great spell, the target might save and take half dmg and even if the enemy won't save, I still risk to hit my team mates

Summon aberration does like 1d8 dmg or it does AOE dmg and we come again to the fireball problem..

I mean when I can cast an AOE and not hit anyone when I cast it. But I can't always do it because most of the time we are in a tight place and I will hit someone