They'll have trample with Kami of the West Tree
A 001/500 is going to fetch a higher price than a random number in the middle like 364/500, and other numbers are more sought after, too
Bident of Thassa Blue has many cards in MTG that allow you to draw when your creatures hit your opponent, like Bident of Thassa and Coastal Piracy
You've probably already guessed it, those are: Merfolk, Pirates, Dinosaurs, and Vampires
Comet, Stellar Pup is a good boy (yes, he is!), and this card can generate Squirrel tokens, but its in the wrong colors to be a true payoff
It doesnt help much if the opponents counters are expensive, but many popular counters fall within three mana