No estoy seguro, pero creo que su resistencia se basa en la Str y no en la Vit.
# Requires a Spear weapon.
# Vital Strike only adds ATK at level 6 and higher. At levels 1-4 ATK is lost, while at level 5 nothing is lost or gained.
# There is no indication of success upon inflicting a status to the target besides general observation.
# The statuses all stack.
# The duration of the statuses are reset each time a status is inflicted.
# Infliction rate: Base Chance - (0.27*Target Strength) (204 STR = immune)
# Duration: 30 - AGI/10 - LUK/4
Fuente: iRO Wiki: Vital Strike (http://irowiki.org/wiki/Vital_Strike)