In addition, the EX01 Diaboromon also has a security effect that plays a token, which in turn can easily satisfy BT5 Catastrophe Cannon's second effect to spawn another token (if u have a Diaboromon on the field) when it is activated before you can properly setup a Diaboromon by digivolution.
In a Diaboromon game, more tokens equals more blockers/attackers, so what I personally do is to prep as many tokens as possible to end it in one swift turn and if I can't then I will just keep making more tokens to slowly overwhelm my opponent.