My favorite formation
I am of the opinion that each opponent needs a different combination of characters. But here is a more or less universal version in which
1) Eugene will place the scarecrow behind Andrea, not behind Abraham. In this case, Abraham will be able to attract opponents without any problems.
2) Bella will also pull a fourth opponent towards Abraham. In addition, she will prevent opponents from using their ultimate + stun.
3) Keith gives shields to himself and Abraham + puts marks on opponents and in fact all 5 heroes take damage.
4) Our Eugene is safe and he heals his team if necessary, and also puts his scarecrows.
5) Andrea after the scarecrow also in conjunction with Kate do good damage + stun opponents when charging the right RIP ammo.