Mono-Green, like the other Mono Colored decks, has access to staple cards that normally wouldn't be played in a multi-Colored deck, and would go under the radar otherwise
Sincerely yours,
Gathering Knowledge and Wisdom could well be an Amethyst mainstay
FINAL FANTASY: COLORLESS, ARTIFACTS AND LANDS Summon: Bahamut is going to be wonderful for colorless decks that can ramp it out, for saga decks that can manipulate it, and for any decks looking to reanimate it for cheap
A ritual is any card that follows these rules: The effect gives you back more mana than you spent to play it
If I am running Zealot in that situation, I can block the Bloodtithe Harvester, removing a chunk of the pressure on my life total, giving me room to eventually take over the game with my higher value cards