Consider these cards your intro lesson on the inner workings of some ravenous beasties
Wake Thrasher Wake Thrasher ($0.65) is meant for Merfolk Tribal usually but that does not mean it isn't good for other decks
This won't win a cEDH tournament, but I like how it combines airbending and waterbending, or at least what those mechanics care about, into a couples' card
They have fetchable land types, and they naturally enter untapped if your opponents control a collective eight or more lands
Camellia helps get that engine going by letting you forage for two mana to give each other Squirrel creature you control a +1/+1 counter
One more was printed in Phyrexia: All Will Be One Commander with Otharri, Suns' Glory, and another experience counter legendary appeared in the Modern Horizons 3 Commander decks with Azlask, the Swelling Scourge