mtg ghost cards Skulking Price & Card Details — Eternal Masters Whenever a Horror you control deals combat damage to a player Ghost Vacuum - MTG Single

The ability to loop this card with a very relevant card type is why it makes my list

This amplifies the rarity of the rarer FPF cards

Play elves, your commander gets bigger and produces more mana

This was the birth of what we now consider red aggro, fast red threats curving out and maximizing damage, with burn to clear the way and eventually to provide the reach necessary to finish the job

Notably, this release allows Wizards to introduce more Reserved List cards into circulation (albeit in very small numbers), without needing to reprint anything

These cards are commonly referred to as "Alpha" among playtesters