A Fleetmaster must always accept challenges. While fighting challenges, the Fleetmaster may re-roll all failed rolls To Hit, and each unsaved Wound counts as two Wounds when calculating combat resolution.
Source: Warhammer Armies Project: Unofficial 9th Edition (v2.2)
A Fleetmaster must always accept challenges. While fighting challenges, the Fleetmaster may re-roll all failed rolls To Hit, and each unsaved Wound counts as two Wounds when calculating combat resolution.