Wall of Fire (BTDB2)

Wall of Fire is the 2nd upgrade of Path 2 for the Wizard Monkey in Bloons TD Battles 2. It is similar to its BTD6 counterpart except the tick rate of the blaze's contact damage is reduced.

It costs $900.

Summary
A rather low-cost but very cost-efficient source of bloon-popping. This makes it powerful in the early-game against various early eco sends, including most Spaced Bloon and Grouped Bloon sends, as well as dish some damage to bloons later in the game. There is a small downtime between blazes, but paired with an already decent defense it is very strong. Wall of Fire has a major weakness against Purple Bloons, requiring other defenses to take them down.

Tips

 * The high grouped popping power for only $1600 total makes it a great option for clearing out stray bloons, or being your main popping power.
 * The Wall of Fire itself only has 82% uptime, leaving a second where it's down, which can be remedied by a second wall of fire.
 * While powerful, Wall of Fire is very vulnerable to Purple Bloons, as most of its projectiles are capable of damaging them, and Fireball's attack is too slow on its own. Additionally, any purple bloon touching a Wall of Fire will destroy the fire, and start the downtime, leaving a second of vulnerablity.

Trivia

 * The asset for Wall of Fire reuses the old Wall of Fire in BTD6 prior to the Version 17.0 update for that game.
 * It is one of the three towers Gwendolin places in Battle School Lesson 4 - Competition Is Heating Up!.