Unless youre on a budget or unless its used to access Stardust or Assault Synchrons GY effect, Accel is the least important of the core cards, especially since it can only be accessed deep into your combos, and it takes up 2 Extra Deck spots
"Konami-MSJ-court-order-grants-counterclaims" (PDF)
I am extremely tempted to give this card a 1 out of 5 rating just because its hp is so low, but Razor Fin is a good move, and its retreat cost is low, so I won't be giving it my lowest rating, however, I would not use this card in a deck unless you use it with its evolutions in Eeletrik and Eelektross
But I think it's more helpful, ultimately, to show you how I think
This ends up hurting you more than helping if you arent ahead on lands
Jack seemed to be on the verge of losing, but then Summoned the agent's Synchro Monster and won the Duel