Hi James! I was hoping you could answer some questions on the air elemental. I am playing a wizard with the advance familiar feat and use a small air elemental.
According to the RAW, the whirlwind ability states:
'Creatures one or more size categories smaller than the whirlwind might take damage when caught in the whirlwind (generally damage equal to the monster's slam attack for a creature of its size) and may be lifted into the air.'
The RAW states 'whirlwind' size and not 'air elemental' size. With the definition of the whirlwind size being:
'The whirlwind is always 5 feet wide at its base, but its height and width at the top vary from creature to creature (minimum 10 feet high). A whirlwind's width at its peak is always equal to half of its height. The creature controls the exact height, but it must be at least 10 feet high.'
It is my understanding that a small elemental can adjust it's whirlwind height between 10-20' (I read that online but can you clarify the rule on that as well). At 20' height it would have width of 10', which my DM argued made it "large". With the whirlwind size being large meant that it could pick up medium and smaller creatures.
I don't agree with him on account of all other D&D editions this CR1 creature has only ever been able to pick up tiny creatures. Seems a bit overpowered for a CR1 creature to have the ability to pick up a medium creature, when it had always taken a large air elemental to be able to do this before.
So is his definition of it being a large creature, due to having a radius of 10', wrong? Or was did the RAW have a typo and it should have said 'air elemental' size instead of 'whirlwind' size? Or am I wrong and the small air elemental was designed to be able to pick up medium sized creatures with it's whirlwind ability?