The cards need to still be powerful or at least playable as they need to still be competitive versus other cards
Yannik, Scavenging Sentinel exiles a creature you control until Yannik leaves the battlefield, distributing +1/+1 counters while Nikara, Lair Scavenger draws you cards for any creature you control leaving the battlefield with counters on it
Don't get me wrong, you're not completely unhappy casting this for four in the early- to mid-game to remove a utility creature that's giving you conniptions, but in reality, the only time you want to see this is when you have 40 mana available
Its a huge 8/8 trampler that must be dealt with, but at the same time, your opponents wont be too keen on doing it, fearing what the dead monstrosity can reanimate to the battlefield
But what are the most valuable cards from this nearly 30-year-old release
Here's the easiest way make it a game