Save up to 300 seals,then draw when rebate is in events.GNW treasure,or kage treasure,are best options.Also,you may go for edo jinjuriki,when their treasures are up.

Ay 3th is not good,my Jonin Minato destroy it every time.Jinpachi and Kushimaru is good if have initiative,but you need big luck to draw them both with 300 seals.Safest bet is to play lightning blitz.You can buy Danzo in collection scrolls,or try your luck in kage treasure.Same is Darui.And if you have initiative,you can play shark bomb water main.Best is to get Han and Gakido pain for that team.Han is 210 seals,Gakido can get from collection scrolls.