A mod set in the Fate/ TYPE-MOON universe. Primarily based on the rules established by the Grail Wars featured in Fate/stay night, Zero, and hollow ataraxia to create a unique gameplay interpretation of the RPG elements presented in the works.
Currently EMIYA, when at over 20% Health, can use 75% mana to conjure Rho Aias: The Seven Rings that Cover the Burning Heavens. This will throw out a blossom in front of him that will act as a barrier for all incoming ranged attacks, and well as physically block enemies from advancing.
Right now the bloom is vertex animated to open, but I think I will have the prop track EMIYA's position and allow him to cast it a second time to put it away. Costing a (comparatively) small amount of mana to start up and then further mana per hit until breaking.
Obviously there will be a lot more polish such as a particle burst as it opens and other things, but as is, I'm pretty happy!
Shirou (HF) can also cast a weaker version with 4 petals, and when EMIYA is below 20% health, This spell slot goes to summoning Caliburn which will cost his life to use, but allow for a massive final attack.
Are you doing it via a zero speed missile?
It's a scene prop that fires a vertex animation on being initialized, and is rotated around its local y-axis by a trigger. I forgot about the 0 speed missiles experiment! That was genuinely one of the cooler bugs-turned-feature we've dug up.