The Curse of Stone trinket gives 5 defense each, in exchange for lowering your move and jump. But if you're just going to stand in place during the worm fight anyway, that's not going to be much of a problem. Iron leggings (4) + iron helmet or propeller cap (5) + iron chestplate (5) plus 4 curses of stone will get you 34, or you could substitute rings for some of the curses and bring some of that fish dish that gives you a defense buff. Fiber armor's even stronger, so if you can handle the penguins you'll have an easier time reaching 34. You don't even need exactly 34, just enough defense so that you have enough heals to kill it before it kills you. 34 is just brainless comfy.