Dragon Ball Super vs Transformers
Connection:
Both are purple-themed galactic tyrantsBoth are purple and white themed galactic tyrants who are responsible for the destruction of a planet (Planet Vegeta and Cybertron respectively)
Both are leaders of their armies (Frieza Force to Frieza and Deceptions to Megatron)
Both are rivals to the protagonists (Son Goku to Frieza and Optimus Prime to Megatron)
Both have powerful forms (Golden Frieza and Galvatron respectively)
Both also have powerful beam attacks they can use continuously (Death Beam and Fusion Cannon respectively)