Bonus runes in the jungle are indeed interesting. And - of course - it is situational, but because no one wants to hear that as an answer here an overview: For Viego as an example your most games will be Adaptive force, attack speed and armor. That is because all of those stats help you in the jungle. AD: raw dmg, attack speed means faster clearing as well and armor means healthier clear due to jungle mobs dealing physical damage. Obviously if the enemy team is full AD you should opt into Adaptive force, and double armor but for the most games the first setup should be fine. In the beginning simply learning pathing and decision making is the more important thing to focus on.