Besides being a negate to Monsters, its effect of changing the level of an enemy Monster is quite relevant against Synchro and Xyz decks
Once per turn, during the End Phase, if this card is in your GY: You can banish 1 LIGHT and 1 DARK monster from your GY, except this card
Theres some fun flavor in the dungeons with each room having a unique name
Teferis Protection became their proof-of-concept and the flagbearer for everything phasing could become in the Magic of the future
NO STATEMENT (ORAL OR WRITTEN) IN ANY BROCHURE OR CATALOG (ONLINE OR IN PRINT) BY AUCTIONEER OR BY SELLER (OR BY THEIR RESPECTIVE AGENTS), AT THE SALE OR AT ANY TIME SHALL BE CONSTRUED AS A WARRANTY OF ANY KIND, EXPRESS OR IMPLIED
Slapping +1/+1 counters on cheap creatures during the mid game provides value and being able to cast off the top of the library can help an Aggro build gain advantage in the late game following a board sweep