@@Ineed427dollars The zombies would have to set up Sick zombie the turn before, allowing the plant hero to remove it first with Whack A Zombie or other hard removal, because Parasol + Sick is 8 brains and Heartichoke Astrovera is 12, unless they wanted to burn a whole turn's worth of brains and risk running into a huge tempo play. Remember, Dragonfruit is also 8 sun, meaning that Rose could just play it instead and shut down Immorticia's big trick game. Immorticia is the only hero who can run both Parasol and Sick, and she's got better options.
