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As a 1/1 for a single green mana, it's not likely to affect the board based on its stat value relative to its cost

Tempo decks are sort of like aggro decks with a big control element

Creatures (29) 3 Birds of Paradise 2 Eternal Witness 4 Devoted Druid 3 Kitchen Finks 4 Noble Hierarch 2 Knight of the Reliquary 1 Viscera Seer 3 Duskwatch Recruiter 1 Walking Ballista 4 Vizier of Remedies 1 Shalai, Voice of Plenty 1 Deputy of Detention Lands (21) Spells (10) Viscera Seer is probably better for this deck than Carrion Feeder, but I could imagine plenty of decks that value Carrion Feeders ability to sacrifice itself

Alternatively, if you are playing Mono-Red in Standard and looking to make the jump into Modern, you can easily convert this into a decent budget Modern deck featuring the new Ravnica Allegiance cards