Insidious Fungus This card is fits with everything my Greenshell decks are trying to do, both triggering Greenshell and providing the ability to play multiple lands in a turn
350+ Magic: The Gathering cards (in a fixed set, and includes 22 Foil Cards) 3 Magic: The Gathering Foundations Play Boosters 2 Reference Cards 13 Tokens 95 Basic Lands, including 10 full art lands 1 How to Build Your Deck Booklet 1 Click Wheel Given that Foundations is meant to form the basis of the Standard format until the turn of the decade, this does seem like a hyper-efficient option to use for getting a collection going if you are just getting started as a player
Mind Twist Mind Twist does its best work with plenty of acceleration
Chromium, the Mutable Chromium, the Mutable will likely see a decent amount of Standard play as a control mirror-breaker, coming in from the sideboard as a threat that is incredibly difficult to deal with while ending the game quickly
And if thats your goal
Sins effect repeating whenever it randomly targets a land opens it up for combo shenanigans in decks like Amulet Titan, but I dont believe that this card does its job efficiently enough to show up in Modern decks