Creaucent Alazrin said:
»Id suggest the smn that isnt using the new 1hr to pop alexander and to use ramuh to stun ADL it should be dead before it gets any clones out.
That's extremely risky. I'm pretty sure ADL can actually summon clones while he's stunned if you push his HP low enough, and if he's under 40% then he'll summon 3 clones instead of 2, making him much more dangerous. If he's under about 25% he can even summon 4 clones. Ideally, to minimize risk, you want him to split before he hits 40%.
Honestly the strategy Papesse used is the only safe one. Get him down to about 60%, wait until both of your Rage timers are up, one of you pop Perfect Defense, then the other one do Flaming Crush and it should cause a split. If not, have the 2nd SMN pop their Crush and hopefully that will (they might need to pop Conduit or use a Siphon for MP). Once he splits, one or both of you pop Conduit if you haven't already, pick one of the clones, and kill it ASAP. If someone has to use Conduit before the split, I'd suggest letting them pick which clone to target so they can go straight into BP spam. Be prepared for knock-back when he splits, it's pretty common, something that might help that is to get into his little cubby hole with him for this part.
Having some good idle gear is important so that you can take a few hits before Perfect Defense is up. 119 gear goes a long way toward that. Also, high summoning skill will go a long way toward making Perfect Defense last long enough.
Lastly, a little tip. ADL has some pretty nasty conal moves. When you watch Papesse's video, notice how she stands off to the side, actually the same side I tend to prefer which is the left side. If you Assault from the side (at least the left side, probably right side too) then Ifrit will approach ADL from the middle, meaning ADL won't be pointing at you when you run in to issue BP commands. That can be pretty important.
I'm sure there are other things I'm forgetting. ADL is no joke, but is pretty straight-forward for an experienced SMN.