Who has time to innovate when you have to make so many new Commander cards each year
They work against mill in a similar fashion: Shuffling your library back into your deck against a mill deck is equivalent to resetting your life total to 20, 40, or whatever against a more standard Magic deck attacking your life total
At its heart, [Fraens] card scanner is all about paper handling, which is always an engineering task fraught with peril
There he demanded to know what Tezzeret had been up to
Life and loyalty are all transactional, and Winter is willing to make a deal with anyone (or anything) as long as it benefits him in the end
Instead, if you need one of the effects, use only a few so you can hold up mana to pay to shut off a potential counterspell , or have mana for other plays