Right now im running Ryze going to a early game sheen into a archmages staff ass soon as possible. Doing well but I need a good rune setup.
please don't
ryze is a mana caster now. he has little to no use for AP when his Q and W (main skills) scale better off of max mana.
i mean i guess an early tear is fine but catalyst is great too. most people are starting out sapphire crystal into tear/cata but you should never get AA as your first item because of how minimally beneficial it is.
the general build for most ryze players now is
sapphire
boots
tear+cata
rod of ages
catalyst/glacial shroud
banshee's veil/frozen heart
frozen heart/banshee's veil
void staff
archangel's staff/manamune
basically it turns him into a DPS mage who's quite tanky yet deals a lot of damage.
manamune is actually quite viable although most people opt for the AA
re: gangplank - the sheen proc does apply on the first Parrrley you use; listen to Thorns
if i were to build gangplank i'd probably go something like:
cloth armor/vamp scepter
boots
wriggles
phage
triforce
atma's
warmog's
FoN or banshee's veil
i guess if you want a more offensive GP then build ghostblade, last whisper, infinity edge, etc, but atmog's is really good
personally i LIKE the phage over sheen because it helps a lot for mid-game ganks