Skullfeather down:

Money can buy power!  After a year of spending and playing, spending and playing, spending and playing, the moment has come -- I've beaten the last boss of the game.  (as it currently stands.  The game is still expanding piece by piece, so maybe a stronger boss will appear eventually, but for now I've won.)

As I explained long ago, all I needed was to get snow white Yuki into fighting shape by giving her a limit break.  This limit break increased her toughness and sp regeneration rate, which was absolutely vital to my eventual victory.

Diva Ruka was also a requirement, and it helped that she was limit break level 2 now.

Of course phantom thief Jamie was a requirement, and it helped that she was limit break level 3 now.

Skullfeather is a unique boss that has to be fought in two different places with two different squads.  The buffs and debuffs on the boss carry across both fights, so what happens in one place affects the other place.  The boss is constantly buffing itself in both places, so you need a seraph with a special ability to strip those buffs away in both locations during the fight.  Phantom thief Jamie wasn't enough, I needed snow white Yuki to do her part too.  They both had the ability I needed, so I cultivated them both to be battle-ready.

Snow white Yuki's squad had the tough sledding, because at limit break 1 she really wasn't up to standard.  I ran through all 4 of my buff-wiping abilities and the boss still wasn't broken yet.  That's living on the edge.  In a few more turns Skullfeather would have buffed its defense, and all hope of victory would have faded away in a logarithmic curve.  I ran through all 4 of samurai Inori's super-powerful tadamusa attacks, and Skullfeather still wasn't broken.  I ran through all 4 of Yingxia's 7th stratagem buffs, and Skullfeather still wasn't broken.  I ran through all 4 of Hisame's Munezuka techniques, and Skullfeather still wasn't broken.

Miya's new skill evolution, Radiant Nova+, was necessary to permanently lower Skullfeather's defense (a new ability it didn't have until the skill evolved, which I accomplished just three days ago.)  This helped weaken the boss even when my other squad was attacking it, because the debuff carried over (because it was permanent).  But she also used all or almost all of her Legend of Inari exclusive attacks.

All I had left was the lingering effects of Miya's debuffs and two exclusive abilities -- Hisame's Dreaming Desire and Inori's Yo-arashi.  So I used my overdrive and threw my last techniques left at the boss before it buffed its defense again -- and broke Skullfeather.

After that red riding hood Karen blasted its devastation rate up to 999% instantly, and then my attackers went to town on it -- diva Ruka provided the finishing blow with a fitting blazing ignition+ skill evolved attack.  My fire squad still had plenty of power left in the tank, but it turned out they didn't need it.  The debuffs Miya provided the squad as a free service meant I was way stronger than Skullfeather imagined I could be.

Skullfeather provided an eternal daphne as a reward, which I eventually decided should go to ethereal Kozue.  That gives my ice squad three eternal daphne holders out of six, which is pretty good.  That's the same amount as my thunder squad has, which I generally consider my second best elemental squad.

This would definitely be a good time to stop spending money on Heaven.  I'm stronger than the last boss, I don't need to buy superfluous strength.  My squads are close enough to their idealized forms.  Now I can relax and play the game for the plot.  The game is actually free to play, only the power-hungry have to pay up, and I'm satiated.

As expected the Seahawks dominated the Super Bowl.  Their defense is too good.

Team America won the team figure skating competition in thrilling fashion.  They were tied with team Japan going into the very last skate, and our skater only scored 6 points more than theirs in the last skate, 200 to 194.  That's only a difference of 3%.  So we won by a 3% paper-thin margin on the last skate.  Incredible drama, and incredibly great figure skating by both teams.  This is what the Winter Olympics are all about.