So, what kind of deck do you have for the endgame of RE: CoM? Personally, I use a high-value (number wise, not CP) Fire deck that takes advantage of the various AoE Fire element sleights. A majority of the CP cost comes from the Elixirs I use for easy restocking. I'll post a list later.

level 7-9 minimum for cards unless it's for a sleight. Three of each magic card, a an elixir and whatever potions I can afford with the left over CP

Well, for me, I had a good balance of cards at the end of the game, mixing in a healthy mix of attack and magic cards, only using sleights when I really needed to use them.  I'd also have a maximum of four enemy cards equipped, those being Vexen,(Auto-Life) Oogie Boogie,(Regen) Marluxia,(Double Sleight) and Neoshadow.(Bio) Those four enemy cards provided me with just the right advantage on the final boss fights! X_X

Here's that list I promised: Five instances of Fire Raid, two instances of Firaga Burst, five instances of Mega Flare, and one instance of Curaga, in that order. Plus, two Elixirs, Fire Boost, and Double Sleight for enemy cards.

Mostly divine roses and oblivion cards which consist of level 5's and such. With my deck I literally kicked Marluxia's ass.

I somehow always end up with a mostly Divine Rose set, with a crud load of Blizzard, and enough Cure for 2 to 3 Curagga's. 

It works somehow. The keycard levels are usually 6-9, no 0's 

I somehow always end up with a mostly Divine Rose set, with a crud load of Blizzard, and enough Cure for 2 to 3 Curagga's. It works somehow. The keycard levels are usually 6-9, no 0's

I actually built a Blizzard deck specifically for use against Axel. It turned that battle into a cakewalk.

I actually built a Blizzard deck specifically for use against Axel. It turned that battle into a cakewalk.

I prefer Blizzard for some reason: I tailor Sora's deck to fit only Blizzard attacks/Blizzaga each time.

Makes Axel and Twilight Town a breeze. 

 

Vexen, however...

Megaflare deck for grinding in Destiny Islands or Twilight Town (all my Mushus are premium because of that haha), a high-level keyblade deck for the waves in Castle Oblivion (neoshadow card grinding whyyy), and a mix of magic (I think Cure and Fire) and attack cards for Marluxia. Also at the end of that deck a bunch (6-7 I think) of 0 Kingdom Keys to break bosses' 20+ card combos. I also have a warp deck that I'll eventually use to get the 'shroom's enemy card.

All these complicated decks when all you really need is 7,8,and 9 attack cards, Two cures, an Exiar, one 0 Card, two if you can afford it and nothing else. I make the keyblades of the attack cards different every group of three, so I'll almost always get a sleight if I randomly combine. I have no problem with any fight, because when ever they attack me, odds are I have a higher attack card, they can't break me, and when they use sleights on me, I click L1 a few times to go to my last card which is a 0 card and break them... easy. Even when I don't have a 0 card my slieght's number is almost always higher than there's

Edited April 29, 201510 yr by Kingdom Of Me

I'd always go for the high level cards. they are always a great help. But when it comes to tough boss fights, i would have to fix my deck and arrange them to form sleights I need.