They're not divulged in preview lists that feature all the cards in the set, and most fans won't know what the secret rares of a new set are until someone pulls them
Kenrith is best friends with cEDH staple Dockside Extortionist, able to set up combos that grant you infinite mana, and then use that mana with his own abilities to win the game
Tricky Terrain is an easy A+ on value, but the actual strategy and card selection feels like it fumbled the ball somewhere
This card, however, seems to have a lot of promise
Shop in the parking lot, where multiple vendors will be selling their own merchandise
There's also a corner case that only applies to multiplayer games using the Range of Influence rule: An equipment cant equip an object outside its controllers range of influence