sales ban yugioh card - Secret Rare (1st Edition) Sales Ban - 25th Anniversary

While other cards have similar effects in Magic, the Herald is the only one you can snap in at instant speed this way

Prowess creatures have been a mainstay of competitive red decks in MTG for years, and the easiest way to pump them are cheap red instants, or instants with alternative casting costs

Eyeblights Ending You can get cheaper black removal spells, but Eyeblight's Ending fits into elf decks both for flavor and for mechanics

Price of Knowledge reflects that

At the same time, its easy to respond to or doesnt overshadow the main win condition except for when its triple-cast off Galvanic Iteration in the middle of an extra turns spree