One of the cheapest things to do in Final Fantasy
games is to use a Phoenix Down on an undead
enemy for instant death
. Yes, you heard me. Just as it can revive fallen characters, it can do likewise to the walking dead
-- but instead of bringing them new life
, it totally negates their existance
. This even works on various boss enemies
A few bosses in FF games I've found to be susceptible to this cheap as hell but useful tactic: the Phantom Train of FFVI, Gerogero and Abadon of FFVIII, and Soulcage in FFIX.