Make Lyn be recruitable with Florina and give them an A support.
Change the weapon system to that of Heroes and (if possible), implement an Anima split, but leave most of the spaces empty so that others can give suggestions as to how it would work and what the tomes will be.
Replace Gerik with Anastasia from Wild Arms 2/FE7if with a custom class, Blade Magess (swords, staves and light magic, I think Klok ripped her animation) and the following stats: 20 HP, 10 Skill, Speed and Luck, 4 Move, 6 Con, everything else is capped at 5. She starts with 10HP, capped Move and Con and 3 in her strong stats, 1 in her weak stats.
Her Prf sword is called Argetlahm and gives her such ridiculous stat boosts, that she reaches the maximum available before it overflows into negative/zero (in other words, if her stats were one point higher and she was equipped with Argetlahm, her stats would overflow.)
All of her growths are 40%, meaning that there's a 40% per stat chance for that stat of hers to overflow and become useless, her class gains as much EXP as a tier 1 recruit.
Her custom theme song is 'Megalomania" from Live-A-Live.
I'll add weapon type icons, Anastasia' portrait (I might just use the FE7if one) and Argetlahm's icon later, I apologize if this was a bit too complex and/or long... :<