Rather than attacking normally, a Sea Giant may make a special attack. If this Attack Hits, it is resolved at Strength 10 with the Multiple Wounds (D6) special rule.
Source: Warhammer Armies Project: Unofficial 9th Edition (v2.2)
Rather than attacking normally, a Sea Giant may make a special attack. If this Attack Hits, it is resolved at Strength 10 with the Multiple Wounds (D6) special rule.