It used to have a way to leverage a higher land count, but Sunscorched Desert is a joke and Scavenger Grounds is super conditional
After some decks arose with Soul Warden and Soul's Attendant and lifegain payoffs to go with them, these creatures that reward more creatures with lifegain have become colloquially known as soul sisters. Table of Contents show What Are Soul Sisters in MTG
Even so, being able to cast a spell without any mana investment is a powerful play, especially when opponents won't expect you to have any interaction
They compare battle to writing elegant poetry, with blood as the ink and each stroke of the brush, or sword, spelling the enemy's certain doom
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