Plus, Petricite nullifies magic - won't do shit against a zombie or something like a werewolf or vampire that's not casting a spell at you. Same goes for Demacian Steel. It's tough stuff, but again, it's just like any other arrow or bolt when shot through a being like an undead or werebeast.
I don't read the lore any more, not since the heart is for some reason more complex that the brain. and the fact that yordles are kind of spirits, bu not...
Petricite is a mess, without specification it's completely useless for someone like me (I would main rumble if Gnar wasn't around).
why? well, in Galio lore (also read vayne lore) it works kind like a Pulldown capacitor.
in popular tongue: it remove magic from the field by absorb it.
so when it hits the saturation point (can absorb any more) it use the absorbed magic to propel it self.
so without the equivalent to ESR and capacitance density I can't say that a arrow head made of the stuff would be useful.
BTW, I also need to know the Energy output of the target, or it's power and energy density, to calculate it's effects.
but that is engineering, and write can barely manage simple arithmetic.
in any case, it would be useful at killing anything that is alive by means of magic, give you gather enough of the stuff and you can get a "energy flow" between the petricite and the target.
nice no??? it's means you can have something like
being complete made out of magic and roaming free in Demacia, just because the petricite can't get a energy flow.
also, do you know Alduin? assuming he doesn't use the gate to Sovngarde and ends up in a top of a really big piece of petricite, he wouldn't die, also assuming that he does in fact is alive by biological means, supported by the fact that his kind has scale and bones.
but he wouldn't speak, not fly, meaning that is something like the dr....
ohhh, i forgot that most people don't progress in the main quest.
in other side, would be nice to see what a petricite without the ESR limit can do to something like a Khajiit, they use the magic from jo and june to lock they "DNA???" into one of the 17 forms possible, meaning they are kind of magical, but since they are complete biological from that on... it would be like being in the ISS? maybe... but the offspring... that is unethical.