plisnithus8
Adventurer
The spell says it does rely on caster's intent or literal definition but DM's discretion. Wouldn't that more likely mean that it's how the creature interprets the word, likely the simplest interpretation?I would argue that command does not rely in the intent of the caster, it relies on the definition and literal wording of the command....
Similarly command-grovel on a flying creatur will make him drop prone, which RAW makes him fall and would kill many a flying creature at high altitude (as would shoving the same creature or casting ensnaring strike on it or a number of similar things).
Grovel making a flying creature fall prone would cause it to harm itself which the spell would not allow.