This guide works for players who is level 20+. You can use this guide to grind 100+ bloonstones, or 12 knowledge packs each hour!
Guide to Earn Bloonstones and Knowledge
First, looking for a Monkey Team include spike factories or super monkeys.
If It Includes Spike Factories
Play MOAB Graveyard. This requires your spike factory has researched 4-3 upgrades.
All you need is a setup like this. You can add a 3-2 spike factory if you afraid.
If It Includes Super Monkeys
Play Contested Ground. You need 3-0 Super Monkeys.
This is the setup. However, this time you need to rely on RNG not screwing you. First, you should hope there isn't too many camos on round 1. Second, you might hope there's no BFB on round 7. You can fail due to bad RNG. If fail, simply go home and reattempt.