Avenger of Zendikar is one of the top played Green cards in all of Commander and used in ten percent of all eligible decks according to EDHREC
5 Dee Kay, Finder of the Lost While Monoxa may be a great way to enable dice-based triggers, Dee Kay, Finder of the Lost is a great Dimir (black/blue) payoff to having access to a significant number of dice-rolling effects in your deck
Mostly though, you'll be using Aminatou's -1 power, as early and often as you can
Ideally, you would only use a 1-1-1 line of this Pokemon family, in a water type deck, you would keep this line on the bench, using Starmie's Ability, and then if the opponent had Pokemon BREAK in play you would move Starmie BREAK to the active Pokemon spot and use Break Star until all of those Pokemon are defeated, I believe all BREAK cards have less than 200 HP, so it should be a multiple knock out situation with Starmie BREAK's move
A NEW K.O