This card is very difficult to destroy because in order to hit it with a removal spell likd Swords to Plowshares or a Doom Blade first another Instant, Sorcery or Artifact must be wasted in order to disarm its counter effect
If X is 0, the 0/0 Hydra token will die immediately after the ability's done resolving unless something else is raising its toughness
Theres quite a long list, with Elvish Mystic, Llanowar Elves, and Birds of Paradise being the usual suspects
As one of only two Rangers in all of Thunder Junction, hes got a tough mission: to defend the land and the people that live on it
That suggests a Vee build to me, and that's the 19th most popular build over at EDHREc.com with 14,507 brews, or a mono-White artifact dork brew
Regardless, these enchantments are all relatively easy to trigger for green, since it cares about big creatures, are cheap to buy, and require a moderate investment of mana