The four most powerful cards in Pioneer are Fable of the Mirror Breaker, Treasure Cruise, Unholy Annex, and Arid Archway
Assassins Trophy gives you so much game against the field that your sideboard is free to attack your expected metagame, not just get you to a passable 60 in most matchups
Even then, the tempo evasive creatures are still good enough to be relevant latethey just cant attack through blockers as easily as creatures with permanent evasion like flying can
All the Battles in this set have the subtype Siege, implying that future Battles might play out differently
The point is just to have a good time, and find what gives you the most from your gaming experience.
T he single triangle pointing up means this is the front face of the card, while the double triangle is the back side