Force damage in D&D 5E is too poorly-defined to be a good part of the game and exists solely for when the designers don't want any characters or creatures to have access to resistance against the thing in question. Either we need an actual description of what happens to a thing that gets hit by it or it should be cut; the vast majority of the things that deal it could perfectly easily be magical bludgeoning / piercing / slashing. Spiritual weapon and Bigby's hand are particularly egregious
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