but if Brisela leaves the battlefield, only the card chosen as your commander at the start of the game may be put into the command zone
Challenge the world: When you feel your deck design is ready, challenge other players or join a tournament to show your skill and knowledge
Oracle's Restoration wants some sort of synergy, whether thats something that cares about lifegain or a way to copy it, but the floor of a card that cycles is so solid you can run it pretty much anywhere
Damia, Sage of Stone may be my favorite commander for this strategy, as she gives you access to green for both ramp and the aforementioned untap effects, like Seedborn Muse
No matter how good a rare is, unless it has a game-ending effect, when it costs 6 mana or more it becomes quite challenging to put it to good use in Constructed