Macrovirus
Initially microscopic virus that absorbs growth hormones from host organisms to augment its own mass. After emerging, specimens continue to grow to billions of times their original size.
Place on ship. Now and start of each turn, kills lowest STRENGTH OR lowest CUNNING crew member (opponent's choice). Cure with 2 Exobiology and 2 SCIENCE.

Rarity: 18 R (Voyager)

Legal Card Pools: Complete Traditional Virtual Block
Legal Rules Sets: OTF Open X-list Revised Warp Speed

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Dilemma Resolution Guide: Macrovirus
Image Source: Voyager: "Macrocosm"