There are plenty of ways to get even more out of a card like PuPu UFO, especially with abilities that untap a card, allowing you to triple the amount of lands you can play in a single turn for devastating effects
We've got them: White / Blue / Black / Red / Colorless That's all from me for now
The first Mickey here is the D23 promo
If you prefer your blue decks to involve the combat step, there are plenty of card draw engines to make sure the gas keeps flowing
So long as you're playing with a bunch of cards with good enter-the-battlefield triggers, like Skyclave Apparition, Agent of Treachery, and Deadeye Navigator, you can rinse and repeat until you've taken over the game
Marrow-Gnawer Even novice Commander players learn that Krenko, Mob Boss is a busted, powerful goblin commander