These serialized cards are printed in the language that each of the characters spoke, seen here on Leonardo da Vinci in Italian and Socrates and Cleopatra in Greek (with a cartouche in the flavor text for Cleopatra)
Its an incredibly powerful spell even at three mana - but for free its the kind of thing that Dire Straits would sing about
Enchantments like the Court of Ambition are notoriously difficult to destroy, with very little enchantment removal typically being run, and most of that is regulated to white and green
Lulu is a great addition to any EDH decks that care about counters, but Stun Counters, in particular, may be in demand soon
The main caveat to this is that to have them in your deck, both colors must match the colors you built your deck with
Another target creature you control gains toxic 1 and hexproof from that color until end of turn