I like the idea of the Yaten, Enbi, Gyoten but you also can't look at it in a vacuum. it may be one total gcd, but consider that if you instead proceed with your next combo, you end up with at minimum 150(300)280 which is 730 over the course of the next 1-2 gcds, proceed toward another sen and your kenki goes +5-25+5 for a net of -15. and there will be at least 1 auto attack there. it doesn't feel like kenki will be particularly hard to come by. but we'll have to see!