We seem to be at the point where DPS potions would give us the extra push that we need on certain fights in the coil.

http://xivdb.com/?item/4605/Mega-Potion-of-Dexterity
5x Lightning Shard, 6x Water Shard, 1x Dart Frog, 1x Spoken Blood, 1x Rock Salt

http://xivdb.com/?item/4607/Mega-Potion-of-Intelligence
5x Lightning Shard, 6x Water Shard, 1x Sandworm Fang, 1x Black Scorpion, 1x Rock Salt

http://xivdb.com/?item/4604/Mega-Potion-of-Strength
5x Lightning Shard, 6x Water Shard, 1x Sagolii Sage, 1x Shark Oil (Requires 5x Water Shard, 1x Hammerhead Shark, 1x Silver Shark), 1x Rock Salt

Dart Frogs, Black Scorpions and Sagolii Sage i can help out with if needed, but you will require to get the other materials yourself (including shards). You should be able to find locations for most if not all these items on www.xivdb.com