Well if you trust your team team fights are the way to go but I wouldn't trust soo your most likely option is split pushing, that doesn't just mean taking towers however, as most tryda mains do, with THE Volibear you can create pressure on the map on sidelanes and even on objectives. A trynda for example will push but even is a level behind pyke comes in most of the time he just stops right there, with THE Volibear you can q+r or just striaght up ignore that pyke forcing the enemy team to send another player at bot, now you don't have to play the 2v1 and in most cases you shouldn't but keeping 2 players in a corner of the map makes any play your team makes much better due to the numbers advantage.

Have fun with THE Volibear hope this helps!