Aim for balance: strong Basics, evolutions, and search Trainers
Exact (20) 1x All Will Be One 1x Apocalypse 1x Cold Snap 1x Conflux 1x Conspiracy 1x Future Sight 1x Hour of Devastation 1x Mirrodin Besieged 1x Morningtide 1x Onslaught 1x Planar Chaos 1x Prophecy 1x Rise of the Eldrazi 1x The Brothers' War 1x Throne of Eldraine 1x Time Spiral 1x Torment 1x Urza's Saga 1x Visions 1x Weatherlight Close Enough (7) 1x All Suns' Dawn 1x Legacy Weapon 1x March of the Machines 1x The Antiquities War 1x Time of Ice 1x Two-Headed Giant 1x Volrath's Stronghold Other (37) 37x Wastes What's in a name
Price: From bulk to very expensive, depending on how limited they are
A matchup problem (the opponent's strategy was a hard counter)
The focus is on intent , and the focus is on what players expect
They do function as normal enchantments, so if they are in a deck they can be drawn and cast normally, although as they specifically only affect Commanders, its very unlikely youll ever encounter one in any other format