Its unfair, but thats in the cards name
Then in your upkeep if you have 20 or more you win that game
Any iteration of Aurelia, the Warleader, or Tajic, Blade of the Legion, or most any decks who want to turn sideways as fast as possible could use Reckless Stormseeker to make sure their armies get there and get there fast
Sacrificing an artifact after Furtive Courier has been blocked won't cause it to become unblocked
Plus, activating her commander ninjutsu ability will only ever cost one blue and one black mana, as commader tax doesnt affect abilities
Approaching each deck as a single game also provided the opportunity to dive deep into the lore of each, capturing even more beloved moments from across the games storyline that we may not have been able to achieve otherwise