However, the main reason is just that the characters simply arent as endearing as The Tenth Doctor, Karlach, Aragorn or The Swarmlord
One of the big draws to the original Mystery Booster set was the inclusion of playtest cards, whacky Un-set style cards that aren't meant for legal tournament play outside of Mystery Booster drafts
This Mondays huge format changes appear to have done something similar
Amazoness Archers X TRAP When an opponent's monster declares an attack, while you control an "Amazoness" monster: Change all monsters your opponent currently controls to face-up Attack Position (Flip effects are not activated), they lose 500 ATK, also they must attack this turn, if able
With a bit of luck and the help of cards like Cacophony Scamp, Leyline of Resonance can enable turn 2 kills and that is powerful for Pioneer
Multiple instances of evolve trigger separately and, similar to above, the stat comparison takes place for each one independently as they try to resolve