mtg impending cards Overlord of the Boilerbilges – Duskmourn Card of the Day if there are seven or more lands on the battlefield Overlord of the Floodpits |

And-yes-the Reserved List does have some benefits

if they do, banish them and get the draw

appears on a separate sorcery card costing two colourless and a single Black mana, granting the ability to replicate by tapping a dalek to copy the spell as many times as cards tapped, before destroying a target creature and damaging their controller for three life

If you use Expansion to copy Reverberate, for example, that copy can target Reverberate again, creating a loop of copies

In retrospect, it was resoundingly obvious: Blue Ugin was a rare combination of an iconic card and extreme scarcity, and players and collectors were willing to pay Tarmogoyf price for it