it's not like you have to actively remember the ruling - the game does that for you.
I cant agree with this statement ... you have to remember the rule, so you can plan what to do.
Otherwise you can easily and often get to frustratin "oh shit why cant i do that" situations.
If you dip a pair of warlock levels you can get eldritch blast with charisma added per hit (so 2d10 + 2 X cha at level 5).
Im not sure what are you talking about here ...
As far as i know, Eldrich Blast dont become stronger as other cantrips, instead it gets another beam ...
And im not quire sure what do you mean by "dip" ... but if you are talking about multiclassing, i also believe that you would need to reach level 5 as Warlock to get that second beam.
Not sure how it works with feat Magic Initiate: Warlock tho ... i presume then you would get both Hex and second beam, but lost Eldrich Invocations ...
But on the other hand, Draconic Bloodline Sorcerer adds charisma modifier to related element since level 6 ... there is no Force, nor Necrotic Dragon tho.
