Reprieve can bounce uncounterable spells because its not a counter
I put this below Feast and Famine, Hearth and Home and maybe even Light and Shadow or Sinew and Steel
The list youve seen so far shows the regular version of the card, so if you open a special version of Ugin, Eye of the Storms, then youve truly hit the jackpot
This versatility is important, as March of Swirling Mist can either protect your creatures or phase out your opponent's, which is crucial when you're being attacked or trying to bypass a difficult blocker
My next recommendation is definitely going to ruffle a few feathers: Rick, Steadfast Leader
Send him out to challenge or quest, then start drawing cards to gain more lore