First of make an item called master ball and set its classifaction to switch and make it useable in battle only
and make its switch called catch then next get the backround ive attached
and go to your monster tab and put in my poocyanna ive attcached position it to fit in the gap on the backround with torchic. Go to the moster party tab and put in you backround with torchic and on trigger put in on turn 0 switch to landons back round and to turn on a switch after to switch to torchicks backround and under trigger put switch catch(the one pokeball starts) and under commands put change battle backround to landons backround and then put change party and change put add member poocyanna then put stop combat and you have a pokemon dbs thats just as good as any cbs.
To make it apper by puting an area with the poocyanna monster party in it give credit if you use my attchments in your game.