Of course, the fact that you can tune it to the situation somewhat helps as well
A tier These are strong 4s ofs in popular archetypes
Enchantment - Saga The First Iroan Games (As this Saga enters and after your draw step, add a lore counter
Then, when you ping the opponent, as long as Ballista has enough counters to survive, youll gain a life, triggering The Destined White Mage to put another +1/+1 counter on Ballista
You didnt need to aggressively maximize your dredging in the way you do with Rainbow Dredge today, but rather you often took a conservative approach of setting up an unbreakable engine first and then overwhelming your opponent with card advantage
What that really means is that there are a ton of playable cards in this set