Considering how tall some of these hydras grow on their own, theres nothing wrong with adding in some of your favorite ways to grant them abilities like flying, lifelink, and trample to really give your opponent fits
(1/24/2020) To determine the total cost of a spell, start with the mana cost or alternative cost you're paying (such as an escape cost), add any cost increases, then apply any cost reductions
Fury, the (former) scourge of Modern, completely ignores this, often being card-neutral by killing two creatures or even becoming card advantage as a Plague Wind that also wins because its a powerful double striker
This was the cheap cost of four mana, which meant you could easily go, 1st Turn Forest, Llanowar Elves, 2nd Turn Forest, 3rd Turn Forest, Natural Order, sacrifices the Elves, fetch out Verdant Force
That'll work well alongside the new Spacecraft mechanic, and the deck is full of different kinds of counters to make the most of it