If you look in the side missions you’ll find the six trials, they will give you some really solid monsters to fill out your team (especially clioseraph, the light one)
Other than that it’s not bad at all. I’d say put tridrakhan 5th and surround it with your poison monsters, put wolfrozor at the back since it has last stand in that form (I think, when evolved it loses it so I’m not sure), and after the poison put ultimadragon and surround it with stun monsters in order to charge up survivor easier