Onua vs Cyclonus: who would win?

Too close to call

Onua · Bionicle · Mata

Tier

7-B, up to HIGH 5-A

Attack Potency

City Level+, up to Brown Dwarf Level

Speed

Massively Hypersonic+, up to Relativistic

Durability

City Level+

Cyclonus · Transformers · Base

Tier

7-B, up to 7-A

Attack Potency

City Level+, up to Mountain Level

Speed

Massively Hypersonic+

Durability

City Level+, up to Mountain Level

A heuristic estimate from normalized VS Battles Wiki stats: tier, attack potency, speed and durability.