There are plenty of ways to get similar play from the top of your library effects these days, and its not that powerful, but it does really bug a certain subset of players to have their cards known
Overall, I'm super excited for Kaldheim and think it is an amazing set, with great lore and fantastic mechanics
Mana curve is probably the single most important concept in MTG deckbuilding
Card Type: Ritual Attribute: WATER Card Level: 8 Monster Type: Aqua Icon: Ritual ATK: 2550 DEF: 2500 Card Number: SRL-069 Card Text: This monster can only be Ritual Summoned with the Ritual Spell Card, "Turtle Oath"
C Common Cyberse Clock Dragon X DARK Level 7 [ CyberseFusionEffect ] ATK 2500 DEF 2000 "Clock Wyvern" + 1+ Link Monsters When this card is Fusion Summoned: You can send cards from the top of your Deck to the GY, equal to the total Link Rating of the materials used for this card's Fusion Summon, and if you do, until the end of the next turn, other monsters you control cannot attack, also this card gains 1000 ATK for each card sent to the GY by this effect