Battle Angels of Tyr Myriad takes good creatures and makes them about three times better
Secret Plans provides extra value from unmorphing your creatures, and Trail of Mystery is a card I knew but never thought about how powerful it was until playing it last weekend
In the 1993 chapter of my History of Vintage project, we saw this with Rudy Edwards Wild Era Magic deck, which is just Taiga, Kird Apes, and Lightning Bolts
Capsize is a bit sad if you cascade without the mana to buyback the spell, but you can still bounce a permanent
It burns for any land entering, which means a lands matter deck will have to think twice and the average deck that ramps reasonably will have to be careful
Are you excited to try out all the new manifest dread cards from Duskmourn