This card also has the added bonus of allowing the player to draw more cards during their turn
Currently, Cover of Darkness is rebounding from an average of $8 and is likely to continue climbing until reaching a stable equilibrium closer to $15
The biggest contributors to this are the more interesting and distinctive support cards Wizards has been releasing in the past couple of years
Burrowguard Mentor is on the weaker side if you don't have enough creatures, but over the course of a game, that'll change
There are plenty of RG+ commanders that could make use of the cost reduction on their activated abilities, even if you never pump up Agathas power
Some decks are fast and wild, while others, such as green-white midrange, are more deliberate