For example, if Clive's Hideaway's hideaway ability is copied and two cards are exiled, you may cast both exiled cards without paying their mana costs (assuming you control four or more legendary creatures at that time.) Gogo's ability can copy any activated or triggered ability on the stack, not just one with targets
Vivi also combos with Quicksilver Elemental to create infinite mana and can even win the game if you have a way to cast infinite spells to ping down opponents
(1) Paper tracker token
If you have a lot of decks like that in your local playgroup, you can take advantage of the End the Turn part of Ultima to stop things happening after it resolves
The set puts a spotlight on Zootopia heroes Judy Hopps and Nick Wilde, just in time for the premiere of Zootopia 2
It doesn't copy whether that enchantment is tapped or untapped, whether it has any counters on it or any Auras or Equipment attached to it, or any non-copy effects that have changed its types, color, power and toughness, and so on