Similarly, Lightning Bolt and Swords to Plowshares represent the peak of efficiency for their effects, remaining staples for decades because no other cards do their job better for the cost
This harks back to Declaration in Stone, which was also two mana, but was a sorcery, exiled the creature and couldnt target planeswalkers, but did hit every creature that shared a name with the target
How much does Thopter Mechanic cost
Here are some incentives for it: Cards like Corrupt, Cabal Coffers, Mutilate, and Defile want you to play as many swamps as possible, so their efficiency is maximized in mono-black decks
Luckily I was able to collect them all before the spiking popularity of commander and rising prices of older cards made some of them skyrocket in value, as many players are using some of the cards like Gaeas Cradle and Grim Monolith as proxies in their EDH decks and Cube