>>280286576
nvm you don't even have to look at Isshin's case, Getsuga is so fucking separate from Shikai Ichigo used it without even having any sort of spiritual weapon, he could fire it from his fullbring sword
Getsuga Tensho isn't Ichigo's Shikai/Bankai ability it's just a Shiba clan technique. Ichigo's Shikai, the power that manifests only when his true zanpakuto changes under certain circumstances, is something else