Shizuka works great with BT Gakido and lightning main.

Other ninja can be anyone with control.. I used BT Ningendo as most f2p... you c*e NY Hashi.

Other option I used is Shizuka, 5k Madara and Water main with poison tai.

For lightning: 1-4-4-2-3

For water: 3-2-4-3-2

For fire: 4-4-1-2-2

For wind: 3-3-1-1-3

For earth: 4-3-2-2-3

note: chases might differ slightly based on ninja you use with Shizuka and Gakido... Summons should connect chases so usually rhino or gamaken...