If he copies a creature, he doesn't copy whether it's tapped or untapped, whether it has any counters on it or Auras and Equipment attached to it, or any non-copy effects that have changed its power, toughness, types, color, and so on
(#15 Overall) - Tidings This is my favorite set drawing card in Blue
You should also consider running engine pieces that trigger when other permanents enter the battlefield
[C][C][C] Gentle Slap: 100 damage
The series four elements shtick breaks down perfectly into four decks, after all, and theres no shortage of iconic legends in it to lead them
Weve also seen Dominaria Uniteds stained-glass for Muldaya and Yargle, Innistrad: Midnight Hunts Equinox frame for Thalia and the Gitrog Monster, and Kamigawa: Neon Dynastys Ninja frame for Goro Goro and Satoru