BTX-squared (also called Frog Bite) is a genetically-enhanced variant of the extremely potent cardiotoxic and neurotoxic batrachotoxin. It leads to fast paralysis and cardiac arrest that usually kills the target within a few Action Turns. Affected characters suffer 2d10 + 10 damage a turn for 3 Action Turns; medichines reduce this damage by half. They must also make a SOM x 2 Test (+30 with medichines) or be paralyzed for 1 hour.