Any booster box from Magic s 29 year history could be exciting to open via a box break
It's a red instant that costs three mana and generates five red mana
Of course, that cost can become its own benefit when combined with the right amethyst cards from Rise of the Floodborn, with cards that trigger abilities upon leaving play able to quickly bounce back to your hand thanks to Madam Mim, Purple Dragons I Win, I Win
But the card is more than just an expensive way to delete an enemy from the table
Her +1 to shoot your team up and anger them into trampling over any who would dare stand in their way is also very strong, and plays well with the Wolf-making earlier
For just three mana you can tap Brash Taunter to force it to fight another creature, except when Brash Taunter is dealt damage, you also deal that much damage to an opponent