Courage, strength, resolve, energy, action, and success (also, funnily enough, power not arrested in the act of judgment). Reversed: foolhardiness, overbearingness, overkill. This is Rainbow Dash through and through. Also the last of the three explicit Virtues (Justice, Temperance, and Fortitude) in the Major Arcana. The remaining four Hope, Prudence, Kindness, and Faith can be easily matched to Pinkie Pie, Twilight Sparkle, Fluttershy, and Spike, respectively.
 
Seven Virtues for the Mane Seven. But that is a conversation for another time.
 
As an aside, Fluttershy giving her grizzly friend a suplex or taming the manticore (especially that one actually) would be perfect for the modern card art which portrays a woman holding open the jaws of a lion. However the meaning would be lost for the sake of a visual, and we don’t do that in my corner of the internet. The older art depicting the breaking of a pillar, of course, likely derives from the story of Samson.