Primary Expertise (BTDB2)

"Adds Mega Ballista attack, plus all Primary Monkeys in radius get more popping power and tier 1 and 2 upgrades for free."

- Upgrade description

Primary Expertise is the 5th upgrade on Path 1 of the Monkey Village in Bloons TD Battles 2. It is very similar to its BTD6 counterpart, except it does not come with a further ability cooldown reduction for Primary Monkeys. Instead, it is more like the BTD6 pre-28.0 counterpart.

It costs $25,000.

Summary
Primary Expertise's buff makes it strong in conjunction with Primary Monkeys, but most especially Bomb Shooters due to how expensive its Tier 1 and 2 upgrades are and because of adding various buffs that cater well with strategies oriented around Striker Jones. It also pairs well with just about any Primary Monkey, with particular synergy with Glue Gunners and Tack Shooters.

Tips

 * Primary Expertise crosspathing depends on needs of the defense, although Radar Scanner is often the best choice due to the fact that most Primary Monkeys have a camo weakness, and also because Primary Expertise comes with extra range.

Trivia

 * TBA