Michael Linke
Adventurer
I think bard and artificer are way more than "half" casters, even going back to their origins. It's hard to say what a "half caster" is now, since many of the classes that used to acquire spellcasting only at high levels get their spells much sooner.It's been argued here on ENWorld that the Bard, the Artificer, the Eldritch Knight, and the Arcane Trickster are all different flavors of "half caster" that use arcane magic. The Warlock also, but I think that argument is a bit weaker than the others.