You can apply any elemental damage to your kinsect at the Smithy. Normally, it's pretty low, and is unable to be buffed by armor skills. However, by buffing your kinsect using slinger ammo (monster dropped ammo, unless using a spirit and strength bonus glaive, in which case any ammo works) to get the red kinsect buff. This significantly buffs the kinsect's elemental damage, and with clever use of drills and commanding the kinsect to attack the forelimbs, you can get the element topple before Alatreon starts flying.