mtg cards that let you cast spells from graveyard can be Magus of the Will Gaea's Will - Modern Horizons

The elemental tokens easily multiply ETB effects and tacking Pyroclasm onto another effect can be game breaking

Card itself is great though

(Treat it and anything attached to it as though they don't exist until its controller's next turn.) 10: Take two extra turns after this one

One will shoot stuff, and draw you a card when you do

There exist multiple decks playing Urzas Saga, the most popular being Affinity, Amulet Titan and Hammer Time, and Force of Vigor can regularly destroy two permanents for zero mana in these matchups

Dont forget that Azula is blue, so you can flicker it for more card advantage and removal