Top decks are probably
Tempo Ziran
Obelysk Zirix/Lost in Desert/ Golem Vet
Combo Rag
Ramp Faie
Mid Range Reva
Mid Range Vaath
Control Ciyphron
Arcanyst Shidai
So to answer the original question no Saurian finality Vaath is not the top deck in the meta and they are good variety deck that are at near the top of ladder…I feel like i should mention Thunderhorn but something are better left discoverable


