Love it! This is one of the best repeatable card draw effects in white and it plays nicely into its token theme.
I thought at first that Court of Grace would go nicely with a flicker theme, but the timing is actually awkward for Flickerwisp (Court comes back at the beginning of your end step, so it takes the monarch away from your opponent but you have to wait another turn cycle before drawing a card), Yorion (same as Flickerwisp), and Brago (if you dealt combat damage you already are the monarch). Only Felidar Guardian really does the thing you want it to do with Court of Grace.
Also, yay for another great enchantment on the quest to make enchantress happen in Cube!
I thought at first that Court of Grace would go nicely with a flicker theme, but the timing is actually awkward for Flickerwisp (Court comes back at the beginning of your end step, so it takes the monarch away from your opponent but you have to wait another turn cycle before drawing a card), Yorion (same as Flickerwisp), and Brago (if you dealt combat damage you already are the monarch). Only Felidar Guardian really does the thing you want it to do with Court of Grace.
Also, yay for another great enchantment on the quest to make enchantress happen in Cube!