Ive played every one of these cards in Commander, and while only some of them see consistent play in my decks today, all of them can bring more out of your mana base in a white Commander deck
The recursion is not to hand and as such is only for the really super long games in which it is one of the best cards going, period
It enters tapped, but it's a card that synergizes well
Things move so fast, especially with the staggering release schedule of 2021, that what was good a couple of months ago has already been completely outstripped by something new
If you would lose unspent mana, that mana becomes colorless instead
Youre going to spread the counters out to make existing creatures into profitable attackers, so if you pile on a stalled-out 2/2, thats the four power from casting Blessing of Frost plus the restored value of your other creature