I try to not play this combination anymore, it sucks. It's not impossible as I've passed this combination before, but I normally just restart if I get these together.
+2d4 to all goblin checks, has required quite a bit of luck for me to pass. I think 1d4+1 or 1d4+2 would be a bit more fair, the potential of getting +7 or +8 to a goblin check is crazy compared to everything else topping out at +3.
The ones that make you bury a card when you acquire a boon type, I kinda wish there was a a version that had a check involved so there was a chance I could keep a card. When you aquire a boon, roll 1D6, on 1,2,3 bury a card.
Some ideas for new wildcards:
+2-3 to recharge a card
All damage is increased by 1
+2-3 to Barrier checks
+2-3 to checks to close a location
+2-3 to beat a henchmen (or Villain)
When you defeat a monster, roll 1d6. On a 1, take 1 point of damage, on a 2 take 2 points of damage. >:E (Or if that's too hard, a single damage on 1 or 2...)
When you encounter [a specific card type], recharge a card