It cost me 1500 yen, and honestly it doesnt even damage the card all that much
You will get a high-class solution for your cards with a matte back and a white frame in front
Nyla, Shirshu Sleuth's second ability has an "intervening 'if' clause." That means the ability won't trigger at all unless you control no Clues at the beginning of your end step, and the ability will do nothing if you control a Clue by the time it resolves
If that creature would die, you can exile it instead
While Vadrik can interact with the Day/Night mechanic of Innistrad: Midnight Hunt, what's truly important about the card is that, as a 1/2 for three mana, Vadrik uses his power to reduce the cost of instants and sorceries
The key is to synergize it with cards that allow you to attach more than one energy to it per turn and keep stacking the damage