{1}{R}{R}: Put a blaze counter on target land without a blaze counter on it. For as long as that land has a blaze counter on it, it has "At the beginning of your upkeep, this land deals 1 damage to you." (The land continues to burn after this creature has left the battlefield.)
Colour identity Red
In short
Obsidian Fireheart has 2 listed printings; the most valuable is the printing from ZEN at US$0.82 on TCGplayer's market price. Prices below are the cheapest in-stock listing in the United States.
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