Bahamut's Coil - Turn 2; ADS.
Since the 'Twintania Fix' ADS has changed for us and it's quite noticable. In a way it's as if it's 'sped up'.
By in that regard, usually it'd attack, fire off an AoE (Whether it be single target, Fire X or Paralysis one--) then back to attacking for a bit before choosing its next AoE.
However after the Twintania patch it's now casting two in quick succession. By that I mean, if it casts the single target one - 75% way through it, it'll begin casting of paralysis or Fire X skill.
The worst offender being, says our Silencer, that if it's casting the Paralysis skill and it hits 75%, that bar disappears and the next bar comes up to be casting - as if it has no cooldown or anything on it. So if you don't silence it before 75%, the bar disappears because it's already casting its second skill; causing of course, paralysis to the party and then the fire of its second AoE or skill.
There's no mention of this in the patch notes and a forum search yields no results.