Devour Braindead/Luka Strat - P5S Mini-guide

All credit to Luka Oxenstierna, who I've heard is the mastermind behind this strat.

This is a guide to the mechanic devour in the fight P5S in Final Fantasy XIV.

Since making my original guide, I've now seen a new strat for dealing with devour that is significantly simpler. This should hopefully limit how many groups get walled by this mechanic in PF.