Hmmm I don't know, it doesn't seem like Sanae's character to make skills cost zero. Maybe a skill with chance to cause her spell to be stronger. Or chance to cause her single target spells to become area spells. Or chance to recover MP for front line at the start of her action if she is in front line.
Sanae is also a VERY potent party member until Byakuren mostly obsoletes buffing characters. Miracle Fruits is amazing and her heal is already fine imo, especially if she miracle fruits herself (which is a good idea because spd/def/mnd) And she already recovers party TP at the end of battle sometimes, even without being in the front four. Recovering front line MP is Reimu's passive and Sanae doesn't even have a single target skill normally?
Yeah, but it makes more sense to me for the other suggestion, chance to have MP cost = 0.
Both her heal and buff are single target. I was mainly referring to those skills.
Hm...
The reason for me stating the "Ability to Create Miracles" as a "chance for the party to cast a spell for free" skill is threefold.
1. This skill makes it so that she'll be useful in a unique way while on the front line, as her "chance of restoring TP after the end of battle" skill does nothing for her or her allies during a fight. Since most of Sanae's skills are party oriented, having a skill that benefits the party like this would fit in with that in mind.
2. This skill ensures that she is still of use after the superhuman monk essentially makes all other buffer type almost obsolete, as a chance for 0 MP spellcasting is always useful in a fight, regardless of who's in the party.
3. As I recall clearly, Sanae is considered as a "person who struggles to stand out among a team of powerful supports", so giving her a unique way of support helps her out in that regard.
Since her heal and buff are fine as is, I suggest that her offensive spell cards be altered a bit, like this:
Moses Miracle
What stays the same: CLD element, uses MAG stat, good at piercing MND, MP cost.
What would be changed: Is now single target, leveling up spell ignores more MND, like how the Monk's nature attack spell can pierce more and more DEF.
Night with Bright Guest Stars
What stays the same: uses MAG stat, MP cost, targets all, doesn't miss.
What would be changed: Is now MYS element, gains special effect "weakens enemy buffs by (SLv * 10)%"(maxed out spell mimics old effect of Yuuka's "Beauty of Nature" spellcard).
Nine Syllable Stabs
MP Cost: 4
Post gauge use: 50%
Row Target, SPI element, uses MAG stat.
Special effects: Can inflict Shock, Paralysis, Heavy.
Leveling up spellcard increases damage and chance at inflicting said ailments.
Reason for changes: Moses Miracle is essentially made into a CLD element, MAG stat based version of Leaning Iron Mountain, which works well if you actually want to use her offensively(which works well if she also has Grand Incantation as a skill to buff her attack power first).
Night with Bright Guest Stars was granted the power to reduce the enemy's buffs because Yuuka's "Beauty of Nature" no longer uses that effect, so it's been freed up for use, and this spell had a special effect in the first game(which was rendered useless by the fact that EVA doesn't work back then), so granting it an effect would make sense here.
And Sanae had Nine Syllable Stabs in the first game, and remembering what said spell did in the Touhou canon games made me think that it could be used as a "binding" technique against enemies. The reason for it being a row targeting spell is to ensure that it's not overpowered(Sanae can't replace Cirno in Paralyzing enemies, for example), and the reason for it being SPI element is that so one of her spells can benefit from her "SPI attack spell boost" skill(I changed the element of Night with Bright Guest Stars to MYS to increase her options for elements, and for flavor, since starlight is still light, which means that it being MYS element makes more sense).
Finally, having one spell for damage and two others that have utility purposes helps her to stand out a bit more when she's not being a dedicated healer/buffer.
And I do hope I'm not annoying you guys with this stuff...