Since Odion Lvl 30 does not use a card to destroy Mythical Beast Cerberus or prevent it from gaining ATK, you can win a duel against him with high Duel Assessments with using a High Score Cerberus deck. For an example deck and how to use it, check the link below.
Check the example traps you sausage.
Use a mako or dino deck, something that makes sure you can lock them down so you can freely do your thing.
I had around 12 traps, and 6 monsters(around 1650/1750 atk) with field spells like Umi or DK added 1 BEWD for overkill, 1 shard so i can keep up if he's close to decking out, the other 2 can be any support spells or traps(non continuous).
You can do the 10-trap fight against ANY opponent, such as one of the Standard street duels. The traps you use do not have to be effective, merely "activated" (even if their effect was wasted). There are lots of simple traps you can active at will: Snake Fang, Shield Spear, Secrets of the Gallant, etc. Just create a deck with a few strong 4-star monsters, then fill the rest with simple traps.