Additionally, Teferi's +1 ability allows players to selectively draw from the top two cards of their library, making sure that all goes according to plan and its controllers have access to the resources they need.
Flying.Poison Breath When Green Dragon enters the battlefield, until end of turn, whenever a creature an opponent controls is dealt damage, destroy it
Avacyn's Judgment This fun two-cost sorcery is a 2 damage Arc Lightning with madness though to turn it into a broken X Spell of doom that splits damage massively - like Rolling Thunder
In my recent EDHREC article, Best Free Red Spells for Commander, I highlight excellent red cards you can play without paying their mana costs
(2020-11-10) Once the game begins, your two commanders are tracked separately
Having a ranked room would likely go a long way toward solving both of these problems and give players a true "tournament practice" experience before they head off to high-value tournaments like leagues, Pro Tour Qualifiers, and Challenges