Question: are bicep slicers illegal in bjj?
Answer: As such, it is legal under IBJJF/UAEJJF rules only after the rank of brown belt. Attacking with one intentionally before that is going to get you disqualified. Since IBJJF/UAEJJF rules are considered as the standard, it is widely accepted that you can't do the bicep slicer until you're a brown belt.