Not only will it remove a blocker that can absorb trample damage, it also helps us block better Galea has vigilance, so we can double dip on value
Assuming you only cast two Hydras per turn from that point on, youre still gaining eight mana every single turn just by having them out
I know the card is visually difficult, being a flip card, but a creature that says 4B: Zombify a creature is worth the effort and the reading
Oh, and if you need someone dead quick, theres always Tyrannex Rex, right
But there are over 500 unique beasts in Magic, so its somewhat daunting to choose the best of the best
Green doesnt offer the best brawlers until at least Turn 3, so I recommend evaluating it as a mid- to late-game kill spell instead of comparing it to something like Smite the Deathless