One fault of those too certain of themselves is that they never second guess if things actually happened the way they think they did.
The bomber was too certain that he defeated Tagawa but was surprised by a spiralling coffin meant to imprison him.
The bomber destroyed the mud coffin before it could complete forming around him but it did give him the information needed to know that his opponent did indeed survive the previous attack.
An injured and slightly scarred Tagawa started walking towards the bomber which left both of them laughing at one another as they both had something to prove to the other party.
The two continued exchanging blows, explosive blasts and mud slings flew about the arena as Tagawa continued to push harder and harder to suppress the bomber with his power and eventually he had come to notice how truly inexperienced the bomber was and eventually the bomber had ran out of stamina and no more cards to play.