Although the only card that can traditionally be sacrificed is Solemn Simulacrum , Ashad gives your nonlegendary artifact spells casualty two, which means they can be copied by sacrificing a creature(s) with two or more power
If any cards have the End of your turn keyword, you may activate them after your Main Phase
These slots will be very swingy indeed
You can ideally get two or three cards off the top of your deck, assuming you dont hit multiple lands, and you could even use explore to manipulate this a bit
(Equipment, Auras you control, and counters are modifications.) Persist (When this creature dies, if it had no -1/-1 counters on it, return it to the battlefield under its owner's control with a -1/-1 counter on it.) Once Obstinate Gargoyle has been blocked, causing it to gain flying by modifying it won't cause it to stop being blocked
When it comes to Standard, Scourge Wolf has one big problem for the next six moths, and that problem is Abbot of Keral Keep