Taunting Bloon is a very weak option, however some players may apply health-buffing sources (e.g. Improved Fortification and Booster Bloon) to prevent the opponent from targeting other Bloons for a long time, however doing so will give you less health than Target Practice Blimp for equal or more Gold.
Return to Sender is a common option against that type of strategy, since a lot of Gold would've been invested in the first place; the opponent would lack aggression without it.
Low-damage 1 reload Monkeys shouldn't have much trouble against Taunting Bloons without buffs, but this can be effective against high-damage Monkeys with longer reload, such as Bomb Shooter if they have nothing else.
For the cost, it's outclassed by Target Practice Blimp, due to Taunting Bloon's high cost and very low health per Bloon, despite increased charges. Additionally, Mountain Obyn's Sentinel Bloons fulfill a similar role but better; they don't cost card slots, they can drain the opponent's lives quicker and easier, and can use similar synergies to keep them on the board.
Spike Storm! is an easy way to stop a swarm of unbuffed Taunting Bloons. Likewise is Mountain Obyn's Brambles.
It is not recommended to run this card. It costs a lot of Gold for extremely low rewards, and is worse than Target Practice Blimp in practically every way.
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