This is a great Instant to cast to simultaneously remove a possible threat and trigger Yshtolas effect
But XY is past, and in this go-around, we have zero capital letters in the "ex", so, do we have to explain the meaning to all, and find it too complex to understand in the eyes of some who weren't here when XY was, or can we interpret this go-around as a different way to Mega evolve, TCG-style, and remake mega turbo under a different name, and leave the past alone as "different", just like NVI's Eelektrik compared to BLK's Eelektrik
If it has no digivolution cards, or becomes a level 3 Digimon, you can't trash any more cards.) EX1-055 C Digimon Lv.3 Tapirmon Color Purple Cost 3 DP 2000 Digivolve Cost 1 Purple 0 from Lv.2 Form Rookie Attribute Vaccine Type Holy Beast Card Text 2 [Inherited Effect] [Your Turn][Once Per Turn] When one of your other Digimon is deleted, Draw 1
It's a mix of an Aether Adept and an Enduring Curiosity, and this kind of card draw tends to perform well in EDH
Looking back, Chaos Orb is like the progenitor of later artifacts like Oblivion Stone, which can destroy other permanents in more conventional ways