ZanpakutōWabisuke (侘助; roughly "Miserable Man", translated in the English manga as "the penitent one"): Wabisuke is very simple and plain in design. Its normal form is indistinguishable from a plain katana. The crossguard is a normal rectangular one, with only an omega design ("omega" as in the Greek letter) on the top and bottom half.



Wabisuke's shikaiShikai: Its Shikai command is "Raise Your Head" (面を上げろ, omote o agero). When activated, the blade loses its curve and straightens, and where a normal katana would end, Wabisuke's blade makes two 90 degree angles, forming three sides of a square reminiscent of a hook. Even more interestingly, it looks like the cutting edge of the blade is on the inside of the angles, not the outside.
Shikai Special Ability: In this form, Wabisuke doubles the weight of whatever it strikes. The ability can affect both inanimate objects and living beings, and is cumulative. For example, the first strike on an opponent (whether it's a hit or is blocked) wielding a 10 lb sword doubles the opposing sword's weight to 20 lbs. Izuru then strikes twice more. The weight of the sword doubles to 40 lbs then 80 lbs. The opponent is now very slow, holding a sword that weighs 80 lb, so to be sure Kira strikes again, doubling its weight to 160 lbs, then again to 320 lbs. By this point, most opponents cannot lift their swords and are brought to their knees by the weight of their own weapon. The potential of this ability is limitless, though a small number of strikes to an opponent's blade is usually all that is needed to render them immobile. This is perhaps a poetic effect of Izuru's weapon. Its ability makes it looks like he is forcing his opponents to bow their heads in apology for a past decision, as it brings his opponents to their knees before him. The hook end of his blade then shows its gruesome function: Izuru can decapitate a fallen opponent by holding the square hook beneath his opponent's neck and lifting, like a reverse guillotine


information from bleach wiki

i just wanted you to come up with his bankai go to bleach wiki for a pic of his Zanpakutō

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chapter 437 reaction's
-Okay... so.
-Still in shock.
-Still can't breath.
And I can't believe it.