Ninja-flipping Havel Mom with Gold Tracer and Dark Bead. What more could you ask for?
Exchange ninja flip with ring that allows you to induce greater amount of cancer as necessary. If hornet ring does it more for ya, go for it! Maybe throw on a Crown of Dusk and Bellowing Dragoncrest Ring for your Dark Bead for MASSIVE DAMAGE. Or a Calamity Ring to give your opponent(s) some advantage.
Otherwise, this is a plague-infected world that's your rotted oyster!
