Projection CE boosts arts cards effectiveness all around by... 15% I think. EMIYA Alter has two arts cards and an arts Noble Phantasm, so putting it on him as his CE (clothes) makes some sense. Having the Archer squared and young stupid Shirou in one place kinda pisses Archer off, probably.
Archer himself has three Arts cards, and until doing a quest to power it up a skill to boost Arts cards as well, so pairing Projection with him can be useful as well, as it will probably lead to chain UBWs.
sigh i don't have this ce... all i got is formal craft but no archer to put it on
There is not a single thing that would make me feel relieved even 1 mm!!Relax, I just feel like removing that part
Clothes, maybe... feel free to change itEMIYA Alter's recommended Craft Essence is Projection Magecraft.
Projection Magecraft is a CE with Shirou in itWait! What are you trying to do with that bow?