The whole theme of the card is about taking away all the opponents favorite toys (their planeswalkers), which the design wonderfully realises without being too oppressive in how it happens
Lands will very likely matter in this set, which means land support cards will too
As a result, I was very happy to find out that this years multiplayer product was an EDH draft format called Commander Legends
Although your exerted characters will still be susceptible to getting challenged, Aurora can defend them from actions with her ability
Since you need to be careful about your life total, you want to focus on creatures with high attack as opposed to ones with low power, as those will often take a while until they become a problem (if they even do at all)
Brawl Not Legal Vintage Legal Timeless Not Legal Commander Legal Pauper Not Legal Oathbreaker Legal Penny Not Legal Toolbox Notes and Rules Information for Sin, Unending Cataclysm: Sin's last ability puts all counters that were on Sin onto the target creature, not just its +1/+1 counters