I'm not questioning your use of a portemanteau here, although maybe I should since you just slapped both words together instead of combining them to create a new meaning, but it's more like I question your sanity as a whole for thinking Pedro is SH material at this point
I will give you that considering how Oda's been handling dead characters there's a good chance he's actually alive though, One Piece never kills and this just keeps getting truer the further we go (looking at you Saul, bleh)
Question the portmanteau all you want. The definition is a blend of the words' definitions.
Ninja: A person trained primarily in stealth, espionage, assassination and the Japanese martial art of ninjutsu.
Jaguar: A large feline mammal (Panthera onca) of Mexico, Central America, and South America, closely related to the leopard and having a tawny coat spotted with black rosettes.
Guardian: One that guards, watches over, or protects.
Ninja + Guardian = Ninjaguardian
Ninjaguardian = nin + Jaguar + dian
A Ninjaguardian could be a large feline Mink with rosettes trained in stealth, espionage, and assassination that guards, watches over, or protects. So, Pedro.
Define what SH Material is.
And when you mention Saul, don't forget D.(the) Jaguar. Dereshishishi
If Pedro was alive he would've been in Wano.
Jinbe barely got there in time for the war. Pedro can't travel through the sea as freely as Jinbe. So, Pedro being alive does not mean he would have been in Wano.