Mass land destruction is also fairly common as a standalone effect, as part of an effect that also destroys artifacts and/or creatures, or as collateral damage for massive board nukes that effectively remove everything from the game
Before we dive into each deck individually, lets briefly examine what items are in the decks: A 100-card ready-to-play commander deck with 10 new cards, one traditional borderless foil commander card, and one borderless foil featured commander card
You have Angel of Finality taking care of other graveyards, so its going to be risk free most of the time
Mimes Meditate attack, combat becomes a war of attrition, doubling in damage every turn
Champions of Kamigawa would have two monocolor cycles, one at uncommon and one at rare