Larian Studios Forums Baldur's Gate III Baldur's Gate III - Help Tips & Tricks Casting Spells with Attack rolls

New to game and don't play DnD.

I feel like I am missing something here, as my spells that seem to use an Attack roll (I am assuming it uses that particular class stat - like CHA for Warlock or INT for Wizard, WIS for Cleric) seem to have very low percentages to hit compared to my attackers. Often even their own weapon use even with low dex or str. So things like Eldritch blast, Scorching Ray, Guiding Bolt. So I have been prioritizing spells with savings throws as opposed to hit rolls which is a little sad. It also makes by best damaging spell from my Bard (Dissonant Whispers) which is weird

I try and have Bless on. And I know elevation matters. But is there some mechanic I am missing, or any tips and tricks people have to help out here.