Thread:FGOHikaru/@comment-36.78.84.145-20170829095921/@comment-28209103-20170903082225

If you have Waver then stick with him, Kintoki is like Fill NP> GOLDEN SPARKS!! > Fill NP > Golden Sparks with Waver.

Mashu is a good choice considering you want Kintoki to survive a bit longer (coupled with Waver def buff) he could potentially nuke 3-4 times.

if you maxed his animal dialouge (which probably will be hard right now) Kintoki is a one trick pony but his ability to spam his NP is the real deal among zerker. If you wish to use him regularly then switch Mashu with Leonidas (if you're going with Waver) or St. George to ward off the damage for 3 turns.