Mono-Green Staples Ive packed in some staples of mono-green creature decks, starting with Rhonas's Monument and Sylvan Anthem
Grabbing Pithing Needle can be essential in a variety of matchups, too, whether youre naming Goblin Bombardment out of Boros Energy or Goblin Charbelcher out of Belcher combo
As for Sam, Lotal Attendant, he is a 2/4 creature that creates a food token at the beginning of combat on your turn
The Mana Base (Ramp & Lands): The pre-con comes with many lands that enter the battlefield tapped, which can slow you down
When the last is removed, they may cast this card without paying its mana cost
Merfolk decks with Kopala, Warden of the Waves or Svyelun of Sea and Sky already make their board difficult to interact with by taxing their opponents - adding in another low mana value counterspell further improves the resilience of your already established board