Their artwork features golden versions of Pokmon, as seen with this Greninja card
You have to choose a nonland permanent, which means thats on the board somewhere - you cant just name any card in MTGs history like with Pithing Needle or Sorcerous Spyglass, though those dont stop mana abilities, which Scheming Fence does
Dark Time Wizard Deck Joeys newest theme is already carving out a spot in the meta
Two copies each of Jorubai Murk Lurker and Zof Shade, as well as Gargoyle Sentinel, all have activated abilities that can make use of extra mana
Special Summon 1 monster "Fur Hire" from your Deck, whose Level is lower than that target's original Level
Effects that trigger when the card is destroyed, like Babycerasaurus, would also not be activated by Zeus