mtg cards like soul warden Similar to Lifeblood (VG) Whenever another creature enters What's better for life gain

It single-handedly revitalized those decks into competitive lists labeled as 8-cast and has done an incredible job since being released

You want even MORE math

March From the Black Gate would work nicely there too

Alesha, Who Laughs at Fate I like that Alesha, Who Laughs at Fate triggers off raid so you can attack with the nonsense you want to recur like Accursed Marauder, Plaguecrafter, Fleshbag Marauder, and Orcish Bowmasters

I can accept that overall Rise was a format that was very much loved by those deep into the scene of Magic, while lacking casual appeal based on comments made by Mark Rosewater in the past

it gains you life, trades with almost any creature on the board, and leaves a literal army behind for your opponent to deal with