Getting mana reduction and making your creatures cantrip makes this blue creature a powerful draw engine
If any of your creatures are both colors, they get a +2/+2 buff, which includes the 1/1 Worms created on your upkeep
There are a lot of cards that care about instants and sorceries, and 30 combined instants and sorceries is a decent number to satisfy them
How upset would you be if Magic Online was closing down and Arena didnt allow you to play Legacy, Cube, or Vintage
However, if you chose Smuggler's Surprise's second mode, any creatures you put onto the battlefield that way will gain hexproof and indestructible until end of turn if their power is 4 or greater
Those counters are removed in pairs, essentially annihilating each other until only one kind of counter remains