The first is tap and give everyone a Banana which can be sacrificed for no mana to make Gruul mana and gain a pair of life
Invasion of Amonkhet Krydle of Baldur's Gate Phenax, God of Deception Oona, Queen of the Fae Mind Grind Soaring Thought-Thief Glimpse the Unthinkable Duskmantle Guildmage Umbris, Fear Manifest Ashiok, Dream Render Traumatize Lands Dimir wants a lot of lands that produce black and blue mana , and there are lots of those to choose from
Kari Zev's Expertise won't let you cast Breaking // Entering or Beck // Call
The only hands without these three that I would keep are hands with Gifts Ungiven, at least three lands (one of which provides Blue mana), and some other good spells such as Kagemaro or Sickening Shoal
Here are the exact rules for Standard (the same rules apply to most other Constructed formats)
You clog up the ground pretty effectively as a green player and so the extra disposable bodies are not that exciting