mtg commander masters profile cards Meren of Clan Nel Toth (Borderless Profile) [Commander Masters] Rare Artist Card of the Day -

Perhaps that could have some niche use in Commander, but the problem is it's a symmetrical effect - as likely to impact your own Sol Ring as your neighbor's

The combination of Winter, Cynical Opportunist and Polluted Cistern subtly drained the entire table of life

It also provides an estimation of how close you are to completing your collection by calculating how many Arena boosters you need to open or how many Arena drafts you need to participate in to complete a Magic set

I have seen multiplayer games where people will let you draw all five too, like temporary allies or to give your removal like Swords to Plowshares for that Blightsteel Colossus one-shot kill