Sure, you only get one of the three cards into your hand, but the others going into your graveyard is easily exploitable
That it hits for seven instead of six is just gravy, and I definitely dont hate trample
The real standout synergy in blue-black lies between Cryogen Relic and Embrace Oblivion
The player(s) always go first
Search for Azcanta / Azcanta, the Sunken Ruin A key card for Azorius Control decks when Teferi, Hero of Dominaria is playable in a format, Search for Azcanta, at the price of not interacting on turn 2, gives card selection, then blue ramp, then card advantage, which is perfect if youre going to bounce their turn 2 play with Teferi, Time Raveler or wrath ASAP
There would be several cards with PSA grade 9 or lower in circulation though