Wizard no attack penalty?

Good evening everybody!
So I just switched from Alpha to the full-fledged version of DD and one thing that I find amazing (amongst countless other things) is how much better the Wizard in this version is! Wizard was a painful class to play in alpha; too many spells where of little to no use - but now they all have effects to make them worthwhile in many situations!
His ability to treat glyphs as small items make him super flexible, too. Plus his Fireball is even stronger than ever before with the new burning effect (which gets doubled). But one thing I don't understand is this: did they remove Wizard's attack penalty? He seems to be doing exactly the same attack damage as my other basic classes (haven't unlocked anything else yet). Also, can somebody explain to me what his "+10 to other conversions" is supposed to mean?
sorry for bad englando and for noob question
So I just switched from Alpha to the full-fledged version of DD and one thing that I find amazing (amongst countless other things) is how much better the Wizard in this version is! Wizard was a painful class to play in alpha; too many spells where of little to no use - but now they all have effects to make them worthwhile in many situations!
His ability to treat glyphs as small items make him super flexible, too. Plus his Fireball is even stronger than ever before with the new burning effect (which gets doubled). But one thing I don't understand is this: did they remove Wizard's attack penalty? He seems to be doing exactly the same attack damage as my other basic classes (haven't unlocked anything else yet). Also, can somebody explain to me what his "+10 to other conversions" is supposed to mean?
sorry for bad englando and for noob question