mtg opponent draw cards Curse of Fool's Wisdom [Commander 2019] Draw a card from an opponents library Deck that punishes opponent for

If enough -1/-1 counters are put on a creature you control at the same time to make its toughness 0 or less, Host of the Hereafter's last ability will see all of the +1/+1 counters it had when it died as well as the -1/-1 counters it had, and the same number of each of those types of counters (plus any other applicable counters) will be put onto the target creature

In Commander, resolving one of these bad boys (or having one put into play via more nefarious means, such as with Muxus) is often enough for you to pull well ahead of your opponents on board

Mythic Rare (M) Symbol: Orange / Red-Orange Introduced in 2008, Mythic Rares are the pinnacle of rarity

It does cost quite a bit of mana, but the effect is worth it for how powerful it is

Solitude can take care of many threats that are just too big for Prismatic Ending, most notably Murktide Regent but also things like Emrakul, the Aeons Torn, and so the two work very well together