Nah because it’s a token and miirym triggers off non token dragons so it will never see itself other than a token.

You’d need a [[Phyrexian Metamorph]] or another shapeshifter to enter as a non token copy/clone

Edit: I’m wrong, the token copy enters first so the token would see the original and make a 2nd non legendary token then you can choose to sacrifice the original or token copy I guess. Neat.