Other characteristic decks are Mono-Green Tron, which plays some of the biggest colorless threats in the format, and Death's Shadow, which focuses on lowering its player's life total to enable a massive Death's Shadow
You may want to try reinstalling your game, along with any external gaming launcher (like Steam), to see if your problem is fixed
The trouble is, outside of Limited, blocking isn't all that common
In fact, I think with Force of Negation I hard-cast it about a third of the time, compared to Force of Will, which I hard-cast probably less than 10% of the time
Witness the brilliance of Xanathars machinations as it fires its Charm Ray, Sleep Ray, Slowing Ray, Petrification Ray and Fear Ray towards its helpless and hapless foes
This means that if your deck only lets you play white and green cards, you can still play Sunscape Familiar and take advantage of the discount.