You might be surprised at how many common game actions net you damage with this in play, from cracking a fetchlandfetchland to activating tokens like Food, Treasure, and Clues
The first is that Army of One suffix, a reference to Lightnings powerful combo attack of that name in the gamean aggression that is symbolically matched in the card by giving her several offensive keywords like Trample (which lets her deal excess damage from combat directly to a player) and First Strike (which lets her deal damage before anyone else resolves damage in combat)
Players can cast cheap spells in the early game, but big haymakers that cost seven or eight mana need to wait until later
You didn't spend mana here or with the Act either just one or two likely, draw 13 and have tons of mana available to drop lands and cast those spells
If you would put one or more counters on a permanent or player, put twice that many of each of those kinds of counters on that permanent or player instead
As we saw with the pie charts, she often runs about 14 enchantments, a rate that's much higher than most other decks