Both of those options feel pretty good, though When it has a big enough friend around, it is going to be an intimidating attacker on any board and that alone is enough for the Ruiner to be relevant almost all game long
The result of this lesson is twofold
We also have a separate guide to the MTG Commander banlist, if that's the only format you're interested in
So long as you keep removal and wipes high, mana fixing and card draw at the same ratio, and also maintain a good count of huge Creatures with good abilities, you will be doing it right
This version of Atraxa allows you proliferate during each of your end steps
This particular artwork hasn't been reprinted in any other sets, making it more unique than several of the other mana vault cards which have a few slight variants