Board Thread:Questions and Answers/@comment-33591053-20180422093549/@comment-35228920-20180422095950

If you can dokkan INT Trunks to INT SS Gotenks then maybe

Leader Teq Vegito

AGL Vegito

INT SS Gotenks

STR SSJ4 Goku

PHY Kefla

PHY SSJ3 Gotenks

Should get a fair amount of KI through fused fighter and it links reasonably well that way but you probably need a few more characters, you definitely need to dokkan them all and they will grow better. But otherwise, that's the best i can think of. Apologies if it isnt the best :)