There's more to Magic than just building decks and winning games
It is interesting to notice that the Black Round Corner Filler Card came only in October 10, 1998
While mana intensive, the ability to repeatedly refute an opponent's turn by bouncing their guy combined with the ability to use Disappear as a way to "protect" your creatures in combat (cast Disappear on it and then attack freely, knowing you can save it from lethal damage) made for a very potent enchantment that acted more as a sorcery than an enchantment
Cutting it from a competitive deck and trying to swap in something else would almost never be recommended because the card is too important to the deck's overall strategy
Any deck can feasibly run these with little to no ill effect
This launch will include Set, Draft, and Collectors booster packs, a bundle containing eight Set boosters and five promo cards , We can expect Lord of the Rings to be a big part of Magics year, though, as well also be getting a Gift Edition Bundle on July 7 , which includes eight Set boosters and one Collectors booster, and a Holiday release on November 3