For over a year control decks got to be at or near the top of Standard, and without Mirari's Wake it is doubtful they would have seen much play at all
With a total of 20 different basic lands, each season features a staggered rarity: Spring 40% Summer 30% Autumn 20% Winter 10% You can find the full-art seasonal basic lands in non-foil and traditional foil in Play Boosters, Collector Boosters, and Bundles
And if Keepers not triggering at all, that probably means youre in a good position already
I think theres more black than blue, but it still may only be a sideboard card at best, unless something more dedicated like the first deck here, pans out.
Its overcosted in comparison to analogs like Village Rites and Deadly Dispute, and being a sorcery takes away a lot of interplay that cards like this usually have
A casual read of the card will tell everyone that he shouldn't stick, so you'll have a whole table united against that happening