try this

Kankuro Main X
X X X
Kakashi Hinata X

Talent

Super Shark bomb

Water style flowing whip

Chakra dissection blade

Neurotoxin

Water clone jutsu

summon: Ninja dog Pakkun


you should be able to get Kakashi in the 7 days reward after that just try to upgrade Hinata to 2*

this will give you a highest combo of 5 (6 with summon)

Hope it helped :D