classic pokemon booster packs Mega Pitch Black Box released in 1999 Opening a Bunch of Old

Worry not, because Sloppity Bilepiper and Dark Apostle can enable cascade for creature and noncreature spells respectively

Absolute Virtue Absolutely huge for sure, and definitely protects you but Absolute Virtue has an accordingly large mana cost and its lack of protection will likely limit it to being an option in reanimator decks

It is worth noting that Walking Ballista can create infinite damage and infinite life gain when paired with Heliod, the Sun-Crowned, another worthwhile inclusion in the Coven Counters deck if you have other coincidental life gain effects

As I always say, when players keep making the same play mistake, that's usually a sign that there's something wrong with your design