Board Thread:Event Help/@comment-36792448-20180901214744

I've been having a hard time with the Ultra Instinct event, struggling past the 3rd level and absolutely getting demolished on the 4th level due to the spirit bomb. Can someone please help me build an optimal team? I'm f2p so I don't have any of the high end units. Thanks in advance!https://imgur.com/a/todivpt​ 