9-B
The first set of notable feats in the series are solidly 9-B, via two distinct things: Ichigo tanked being barreled through a concrete wall, and Chad was able to completely destroy a wall with a punch.
This is the most baseline thing for characters to scale to, as the Ichigo who tanks this feat is in his Sealed form, which later is the form he uses to fight with fairly standard Hollows; standard Hollows being the creatures that regular low-tier Soul Reapers are usually sent to dispatch. Chad, as well, is able to take on regular Soul Reapers and slots in pretty well here.
The feats haven't been calc'd, but both are pretty standard for just destroying a wall, so the attack potency will be baseline.
9-B (Wall level): 14 kilojoules
Those who scale:
- Ichigo Kurosaki (Sealed) - Directly tanked the notable feat.
- Yasutora Sado/Chad - Directly performed the notable feat.
- Low-tier Soul Reapers - Can face the same caliber of Hollows as Ichigo, and fight Ichigo himself while in this state.