signal violet
exactly as it says. the first stencil is in the small blind buffoon pack and the second shop has an ankh in a jumbo spectral pack to dupe it with. i didn't experiment much with it but there are quite a few negative tags before endless mode, as well as a cola conveniently before one of them. i don't think they have anything worth taking, however
there's also an invisible joker extremely deep in ante 3 but good luck having enough econ to roll for that one lmao
also, the aura in the ante 4 mega spectral pack gives polychrome.