I am now reminded of another key and significant difference between 5e and 1e – where “magic” comes from.
According to 5e, all magic is the same and the different classes merely represent three broad methods for manipulating it – “Divine Magic” merely means that you see the act of manipulating the supernatural in terms of worship or veneration, while “Arcane Magic” means that you see it in terms of a science, while “Mysticism” means you view it as a more of an superpower or inherent ability.
All magic is magic, drawn from the same well. It is what makes the multi-class rules spellcasting rules work, and over all creates a simplified vision of the metaphysics underlying the game universe.
This is fundamentally different from 1e, where Divine Magic, Arcane Magic, and Psionics are quite different things. In 1e, Divine Magic is divine energy or mana that the cleric or druid channeled for their Deity. In fact, in the old nomenclature of Demi-, Lesser, and Greater Gods there were restrictions on the level spell that could be granted based on the power of the Deity – plus the higher level spell were granted (by daily prayer) either by a powerful minion of the Deity or by the Deity Itself.
Arcane Magic in 1e is pretty much like it is described in 5e, the individual caster learns how to manipulate the supernatural energies of magic through the use of formula that involve material, somatic, and verbal components. It’s a science, and the magic-users have learned it, and they are limited merely by their willpower to advance in level.
Psionics in 1e isn’t magic at all, it’s psychic abilities and operated on an entirely different premise.
But all of this just reaffirms the core differences underlying the rules and engine of the game. Now unlike, the Heroic Character of last post which I can totally get behind this “all magic is the same magic, drawn from the same well” is something that I’m not very enamored with. For example, in my old friend SD’s game, clerics were at a disadvantage if they were in an area where there wasn’t any worship of their Deity or there where no shrines or temples in Their Name. It made for an interesting thread in one bit of his campaign.
Currently, I’m experimenting with KR and her Druid/Wizard to allocate her spell levels like 1e instead of 5e. So instead of being a 1th level spell-caster with access to all of those spell-levels (including levels beyond what she can nominally cast save as boosted spells of lower level) we’re trying her out as 5th level caster and a 6th level caster whose spells are tracked separately and cannot “cross pollinate” as it were. It seems like it is working fine and if we don’t find any hidden problems that’s what I’ll stick with.
In any case, that’s my thoughts on the matter,