apparently the opponent of this Inkling is the Spontaneously Combusting Woomy. Entire battlefield gets blown up, and only the cookie is left. I pick it up and hide it in the basement with a gateway to Hell.
I use /execute to run a command at the Invincible Wither's position to teleport the cookie, and ONLY the cookie, to me.
I put the cookie in an ME system with a security terminal attached somewhere on the other side of one of the 32,000 different Quantum Link Chambers. Also, the server has anti-cheat protection, so hacking will result in an instant kick as long as it's not flight or speed hacking. Then you'll just get rubber-banded.