Assuming one of the creatures we return to our hand is Kroxa, Titan of Death's Hunger (which we should mill over thanks to Death's Oasis), we can then use the two extra lands from Uro to play Kroxa, Titan of Death's Hunger and repeat the same loop, getting two one-mana-or-less creatures back to our hand, making our opponent discard two cards, and possibly hitting our opponent for six damage
Mind Stone doesn't qualify for the list, but three Mind Stones in a trench coat counts
It also has the ability to create token copies of itself, but this costs five mana, which will be extremely difficult to pay for until later rounds, and somewhat pointless for aggro decks
Evolved Pokmon keep their attached energy and damage, but they lose any special conditionshandy, right
Grand Prix have enough on the line to justify pros working to break Modern
Zurzoth for the win-zoth