Talk:Billy the Kid/@comment-201.178.182.80-20180316010312/@comment-114.125.216.246-20180317152948

Emiya NP is AoE buster, and Billy is ST Quick billy is quick based servant with good crit, his marksman ability increase his crit damage by 60% at base and 120% at max his evade skill further increases his crit damage from16 to 32%, he has a passive skill that gives him a 10% crit, and his bond craft essence increases the party's crit damage by 25%.

so if you want to go full crit, i think Billy is a good choice