This combination of demand and rarity makes Mana Crypt the 4th-most-valuable card outside the Reserved List, behind two cards from Portal: Three Kingdoms (Imperial Seal and Zodiac Dragon) and one (Grim Tutor) which was exclusive to a particular 1999 starter deck
A three-mana planeswalker with two (2!) powerful plus abilities adds up to a very potent card and its likely that the only thing keeping Oko, Thief of Crowns from being the most powerful card in Standard is the dynamic duo of Golos, Tireless Pilgrim and Field of the Dead
The main one that works with your finality counters is Fains second ability, letting you remove a counter from one of your creatures to make a Treasure token
The nice thing about Rides End is that if you happen to be targeting a tapped creature or vehicle, the mana cost drops down to just one white and one generic mana, making it much more reasonable to cast
Sidisi is a four mana black, green, and blue 3/3 that has you mill three cards whenever they enter the battlefield or attack
The latest design for these textured foil cards focuses on matching the sci-fi side of Assassins Creed