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For beelzebub this team works very well:

Beast eddy (HP Drain + Permadeath when invincible or imunity)
Blue bath (lower accuracy)
Green derby demon (permadeath)

Cyborg eddie also works well, with the magus shinobi and gunner hellraiser.

It covers vanish, MR up, Def Up, Echo, Accuracy up and increased power generation.

Switching hellraiser for Lady azov...