It could be a pretty close fight.
Because, even though Ramuthra destrupts the elements, the Golem sucks magic from fire and air beings.
Plus, even people with resistance and the encased afrit were hurt (killed) by the Golem.
And of course Ramuthra doesn't seem very bright and a Golem has a magician behind it.
"You belong in Gryffindor,
where dwell the brave at heart,
Their daring, nerve and chivalry
set Gryffindors apart."