Delve (Each card you exile from your graveyard while casting this spell pays for {1}.) Flying Murktide Regent enters the battlefield with a +1/+1 counter on it for each instant and sorcery card exiled with it. Whenever an instant or sorcery card leaves your graveyard, put a +1/+1 counter on Murktide Regent.
"Stensia blazed with new heat. Nephalia's tides are chaotic. And everywhere, this unnatural frost. The land is sending a warning."
— Katilda, Dawnhart Prime