So if you want some for your collection or are looking for a good cheap investment, the enemy buddylands are where it's at on Magic Online
Achilles' Heel: Unlike other Guardians, who usually favour putting down one or two Weapon Assets to fight, Nathaniel likes to play cheap combat Events repeatedly to pummel enemies, so anything that penalises him when playing cards or outright stops him from doing so will completely shut his offensive capabilities down
Families also have a clear reason to consider the event, since children 10 years and below are free to enter
Chronomantic Escape is part of a cycle, but the blue and red versions, Reality Strobe and Arc Flicker, don't seem impactful enough to make it in the Commander format, so don't bank on seeing similar spikes for these cards
Most of these cards can be found in the new Space-Time Smackdown booster packs
Edition 47