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Rogues and Pirates can make great use of this enchantment (they can go wide with small creatures), but Merfolk is probably the best fit

The front face is essentially Cathartic Reunion which sees some play from time to time as a hand smoother

None of these are terribly exciting, but they all at least have some amount of use - particularly Dross Skullbomb doing a decent Blood Fountain impression

Sothera, the Supervoid Ive seen people bemoaning Sothera, the Supervoid as another Grave Pact/Dictate of Erebos-style effect, but I think theres some nuance here

Table of Contents show What Are Cost Reducers in MTG

It should be the creature that ends the game in your favor